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Sex of Bovine Embryos May Be Related to Mothers' Preovulatory Follicular Testosterone1

9 Jan 2008

Abstract excerpt

Although the sex of the offspring in mammals is commonly viewed as a matter of chance (depending on whether an X or a Y chromosome-bearing spermatozoon reaches the ovum first), evolutionary biologists have shown that offspring sex ratios are often significantly related to maternal dominance, a characteristic that has been shown to be linked to testosterone in female mammals, including humans. Hence, we...

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PMID: 18184920
DOI: 10.1095/biolreprod.107.066050

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