Exhibit 99.1

ASX ANNOUNCEMENT 29 June 2018 Lapse of Employee Share Options Melbourne, Australia; 29 June 2018: Genetic Technologies Limited (ASX: GTG; NASDAQ: GENE, “Company”) advises that 20,000,000 unlisted share options granted pursuant to the Company’s employee option plan have lapsed. The details of these lapsed options are: Accordingly, as at the date of this announcement, as summarised below, there are a total of 55,102,778 outstanding options over shares in the Company. FOR FURTHER INFORMATION PLEASE CONTACT Dr Paul Kasian Chairman and Interim CEO Genetic Technologies Limited + 61 3 8412 7000 Jason Wong (USA) Blueprint Life Science Group +1 (415) 375 3340, Ext. 4 Genetic Technologies Limited • Website: www.gtglabs.com • Email: info@gtglabs.com ABN 17 009 212 328 Registered Office • 60-66 Hanover Street Fitzroy Victoria 3065 Australia • Postal Address P.O. Box 115 Fitzroy Victoria 3065 Australia Phone +61 3 8412 7000 • Fax +61 3 8412 7040 Unlisted employee options Exercise price Options lapsed GTGAD (expiring 24 November 2020) $0.020 19,236,111 GTGAD (expiring 31 March 2021) $0.020 5,000,000 GTGAD (expiring 16 February 2022) $0.010 10,500,000 Unlisted options attached to convertible notes GTGAC (expiring 2 December 2018) $0.015 20,366,667 Total 55,102,778 Unlisted employee option reference Exercise price Options lapsed GTGAD (expiring 24 November 2020) $0.020 5,000,000 GTGAD (expiring 14 September 2020) $0.058 250,000 GTGAD (expiring 31 March 2021) $0.020 2,500,000 GTGAD (expiring 16 February 2022) $0.010 12,250,000 Total 20,000,000

About Genetic Technologies Limited Genetic Technologies is a diversified molecular diagnostics company embracing blockchain technologies across Genomic testing platforms. GTG offers cancer predictive testing and assessment tools to help physicians proactively manage patient health. The Company’s lead product, BREVAGenplus®, is a clinically validated risk assessment test for non-hereditary breast cancer and is first in its class. For more information, please visit www.brevagenplus.com and www.phenogensciences.com. Genetic Technologies is developing a pipeline of risk assessment products including a novel colorectal cancer (CRC) test. For more information, please visit www.gtgcorporate.com Safe Harbor Statement Any statements in this press release that relate to the Company's expectations are forward-looking statements, within the meaning of the Private Securities Litigation Reform Act. The Private Securities Litigation Reform Act of 1995 (PSLRA) implemented several significant substantive changes affecting certain cases brought under the federal securities laws, including changes related to pleading, discovery, liability, class representation and awards fees. Since this information may involve risks and uncertainties and are subject to change at any time, the Company's actual results may differ materially from expected results. Additional risks associated with Genetic Technologies' business can be found in its periodic filings with the SEC. Genetic Technologies Limited • Website: www.gtglabs.com • Email: info@gtglabs.comABN 17 009 212 328 Registered Office • 60-66 Hanover Street Fitzroy Victoria 3065 Australia • Postal Address P.O. Box 115 Fitzroy Victoria 3065 Australia Phone +61 3 8412 7000 • Fax +61 3 8412 7040