She states that during this time period, many physicians and scientists struggled to determine the nature sex, and to support a classification of sex as male or female, many physicians and scientists resorted to viewing a person's gonads for identification of his or her sex.
At the time that this book was published, Dreger was a faculty associate at the Center for Ethics and Humanities in the Life Sciences at the College of Medicine, University of Michigan, Michigan.
The worms were kept in these conditions until they reached sexual maturity (around 30 days).journal.
"Triplet worms contained large numbers of sperm, predominantly in the tail region...
But when it came to be neutered a few weeks later, vets were shocked to find out he is a hermaphrodite.
Sonia Scowcroft, the adoption centre manager, said she was "pretty stunned" at the revelation.
The optimal deployment of reproductive resources by hermaphrodites to male versus female function (i.e., their sex allocation) depends directly on opportunities for mating.
If hermaphrodites occur among females, selection should favor those with a male-biased allocation because increased male allocation enhances siring success when eggs are abundant [1–3].
In the presence of males, hermaphrodites did not evolve, probably because they were already strongly female biased in the base population.
However, hermaphrodites mating in the absence of males evolved greater male allocation, as predicted.
Dreger asserts that Sophie V.'s story highlights the difficulties that arise when trying to assign a sex of either male or female to persons whose anatomies differ from the standard combinations of attributes considered to be male, such as a penis, prostate, and testicles, or those considered to be female that include a clitoris, uterus, and vagina.
People whose anatomical combinations did not match one of those standards were typically classed as hermaphrodites, and after the early 1900s also came to be medically labeled as intersexual.
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