<?xml version="1.0" encoding="us-ascii"?><InstanceReport xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><Version>2.4.0.8</Version><ReportLongName>106 - Disclosure - Organization and Nature of Operations and Basis of Presentation</ReportLongName><DisplayLabelColumn>true</DisplayLabelColumn><ShowElementNames>false</ShowElementNames><RoundingOption /><HasEmbeddedReports>false</HasEmbeddedReports><Columns><Column FlagID="0"><Id>1</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><CurrencyCode /><FootnoteIndexer /><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios><MCU><KeyName /><CurrencySymbol /><contextRef><ContextID>P01_01_2013To06_30_2013</ContextID><EntitySchema>http://www.sec.gov/CIK</EntitySchema><EntityValue>0000894158</EntityValue><PeriodDisplayName /><PeriodType>duration</PeriodType><PeriodStartDate>2013-01-01T00:00:00</PeriodStartDate><PeriodEndDate>2013-06-30T00:00:00</PeriodEndDate><Segments /><Scenarios /></contextRef><UPS /><CurrencyCode /><OriginalCurrencyCode /></MCU><CurrencySymbol /><Labels><Label Key="CalendarSupplement" Id="0" Label="6 Months Ended" /><Label Key="Calendar" Id="1" Label="Jun. 30, 2013" /></Labels></Column></Columns><Rows><Row FlagID="0"><Id>1</Id><IsAbstractGroupTitle>true</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>1</Level><ElementName>us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText /><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>xbrli:stringItemType</ElementDataType><SimpleDataType>string</SimpleDataType><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Organization, Consolidation and Presentation of Financial Statements [Abstract]</Label></Row><Row FlagID="0"><Id>2</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>2</Level><ElementName>us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboseLabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="P01_01_2013To06_30_2013" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>              &lt;table border="0" style="clear:both;width:100%; table-layout:fixed;"&gt;  &lt;tr&gt;  &lt;td&gt;&lt;/td&gt;  &lt;/tr&gt;  &lt;/table&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif "&gt;  &lt;table style="clear:both;WIDTH: 100%; BORDER-COLLAPSE: collapse"  border="0" cellspacing="0" cellpadding="0" width="100%"&gt;  &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"&gt;  &lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="2%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"&gt;  &lt;b&gt;&lt;font style="COLOR: black"&gt;1.&lt;/font&gt;&lt;/b&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 97%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="97%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"&gt;  &lt;b&gt;&lt;font style="COLOR: black"&gt;Organization and Nature of Operations  and Basis of Presentation&lt;/font&gt;&lt;/b&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;  &lt;/table&gt;    &lt;div style="clear:both;TEXT-INDENT: -29.7pt; MARGIN: 0in 0in 0pt 29.7pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"&gt;  &lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;    &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="justify"&gt;&lt;b&gt;&lt;i&gt;&lt;font style="COLOR: black"&gt;Description of  Business&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;&lt;/div&gt;    &lt;div style="clear:both;TEXT-INDENT: 27.5pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="justify"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;    &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="justify"&gt;&lt;font style="COLOR: black"&gt;Synthetic Biologics,  Inc. (the &amp;#8220;Company&amp;#8221; or &amp;#8220;Synthetic  Biologics&amp;#8221;) is a biotechnology company focused on the  development of biologics for the prevention and treatment of  serious infectious diseases. The Company is developing an oral  enzyme for the prevention of &lt;i&gt;C. difficile&lt;/i&gt; infections, and a  series of monoclonal antibody therapies for the treatment of  Pertussis and &lt;i&gt;Acinetobacter&lt;/i&gt; infections. In addition, the  Company is developing a drug candidate for the treatment of  relapsing-remitting multiple sclerosis and cognitive dysfunction in  multiple sclerosis, and has partnered the development of a  treatment for fibromyalgia.&lt;/font&gt;&lt;/div&gt;    &lt;div style="clear:both;TEXT-INDENT: 27.5pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="justify"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;    &lt;table style="clear:both;WIDTH: 100%; BORDER-COLLAPSE: collapse"  border="0" cellspacing="0" cellpadding="0" width="100%"&gt;  &lt;tr&gt;  &lt;td style="BORDER-BOTTOM: black 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in"   valign="bottom" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;b&gt;&lt;font style="COLOR: black"&gt;  Therapeutic&amp;#160;Area&lt;/font&gt;&lt;/b&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="bottom" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="BORDER-BOTTOM: black 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in"   valign="bottom" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;b&gt;&lt;font style="COLOR: black"&gt;  Product&amp;#160;Candidate&lt;/font&gt;&lt;/b&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="bottom" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="BORDER-BOTTOM: black 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in"   valign="bottom" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;b&gt;&lt;font style="COLOR: black"&gt;  Status&lt;/font&gt;&lt;/b&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Relapsing-remitting  MS&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Trimesta&lt;br/&gt;   (oral estriol)&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Completed  enrollment&amp;#160;in Phase II clinical trial; dosing and monitoring  underway&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Cognitive dysfunction in  MS&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Trimesta&lt;br/&gt;   (oral estriol)&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Patient enrollment  underway in Phase II clinical trial&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;i&gt;&lt;font style="COLOR: black"&gt;C.  difficile&lt;/font&gt;&lt;/i&gt;&lt;font style="COLOR: black"&gt;infection  prevention&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;SYN-004&lt;br/&gt;   &amp;#160;(monoclonal antibody)&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Series of oral enzyme  candidates; first generation candidate (formerly known as P1A) is  in Phase II;&lt;br/&gt;   next generation candidate, SYN-004, (formerly known as P3A) is in  preclinical&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Pertussis&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;SYN-005&lt;br/&gt;   &amp;#160;(monoclonal antibody)&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Preclinical;  Collaborations with Intrexon and The University of Texas at  Austin&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;i&gt;&lt;font style="COLOR: black"&gt;  Acinetobacter&lt;/font&gt;&lt;/i&gt;&lt;font style="COLOR: black"&gt;infection&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;SYN-001&lt;br/&gt;   &amp;#160;(monoclonal antibody)&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Discovery; Collaboration  with Intrexon&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;  Fibromyalgia&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 27%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="27%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Effirma&lt;br/&gt;   &amp;#160;(oral flupirtine)&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="1%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 44%; PADDING-RIGHT: 0in; PADDING-TOP: 0in"   valign="top" width="44%"&gt;  &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="center"&gt;&lt;font style="COLOR: black"&gt;Partnered with Meda  AB&lt;/font&gt;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;  &lt;/table&gt;    &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="justify"&gt;&lt;font style="COLOR: black"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;    &lt;div style="clear:both;MARGIN: 0in 0in 0pt; FONT-FAMILY: Times New Roman,serif; FONT-SIZE: 10pt"   align="justify"&gt;&lt;font style="COLOR: black"&gt;In order to further  prioritize the Company&amp;#8217;s focus, it previously elected to  discontinue further development of AEN-100 for the treatment of  amyotrophic lateral sclerosis. However, the Company is seeking  development partners for its zinc-based intellectual property and  assets including, AEN-100.&lt;/font&gt;&lt;/div&gt;  &lt;/div&gt;        </NonNumbericText><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>nonnum:textBlockItemType</ElementDataType><SimpleDataType>na</SimpleDataType><ElementDefenition>The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 810

 -SubTopic 10

 -Section 50

 -Paragraph 8

 -URI http://asc.fasb.org/extlink&amp;oid=28200181&amp;loc=SL6228881-111685



Reference 2: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 720

 -SubTopic 15

 -URI http://asc.fasb.org/subtopic&amp;trid=2122524



Reference 3: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 205

 -SubTopic 10

 -Section 50

 -Paragraph 1

 -URI http://asc.fasb.org/extlink&amp;oid=6359566&amp;loc=d3e326-107755



Reference 4: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 235

 -SubTopic 10

 -Section 50

 -Paragraph 3

 -URI http://asc.fasb.org/extlink&amp;oid=6367646&amp;loc=d3e18780-107790



Reference 5: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 205

 -SubTopic 10

 -Section 45

 -Paragraph 3

 -URI http://asc.fasb.org/extlink&amp;oid=7668296&amp;loc=d3e288-107754



Reference 6: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 810

 -SubTopic 10

 -URI http://asc.fasb.org/subtopic&amp;trid=2197480



Reference 7: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 810

 -SubTopic 10

 -Section 50

 -Paragraph 1

 -URI http://asc.fasb.org/extlink&amp;oid=18733093&amp;loc=d3e5614-111684



Reference 8: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 915

 -SubTopic 235

 -Section 50

 -Paragraph 1

 -URI http://asc.fasb.org/extlink&amp;oid=6472506&amp;loc=d3e38932-110933



Reference 9: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 852

 -SubTopic 10

 -URI http://asc.fasb.org/subtopic&amp;trid=2209116



Reference 10: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 272

 -SubTopic 10

 -Section 50

 -Paragraph 3

 -URI http://asc.fasb.org/extlink&amp;oid=6373374&amp;loc=d3e70478-108055



Reference 11: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 275

 -SubTopic 10

 -URI http://asc.fasb.org/subtopic&amp;trid=2134480



Reference 12: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 205

 -SubTopic 10

 -URI http://asc.fasb.org/subtopic&amp;trid=2122150



</ElementReferences><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]</Label></Row></Rows><Footnotes /><IsEquityReport>false</IsEquityReport><ReportName>Organization and Nature of Operations and Basis of Presentation</ReportName><MonetaryRoundingLevel>UnKnown</MonetaryRoundingLevel><SharesRoundingLevel>UnKnown</SharesRoundingLevel><PerShareRoundingLevel>UnKnown</PerShareRoundingLevel><ExchangeRateRoundingLevel>UnKnown</ExchangeRateRoundingLevel><HasCustomUnits>true</HasCustomUnits><IsEmbedReport>false</IsEmbedReport><IsMultiCurrency>false</IsMultiCurrency><ReportType>Sheet</ReportType><RoleURI>http://www.syntheticbiologics.com/role/OrganizationAndNatureOfOperationsAndBasisOfPresentation</RoleURI><NumberOfCols>1</NumberOfCols><NumberOfRows>2</NumberOfRows></InstanceReport>
