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We consent to the incorporation by reference in this Registration Statement on Form S-1 of our report dated September 25, 2020 (November 30, 2020 as to the effects of the reverse stock split described in Note 2 and Note 14) relating to the financial statements of Seer, Inc. appearing in the Registration Statement No. 333-252395 on Form S-1. We also consent to the reference to us under the heading "Experts" in such Registration Statement.