Dictionary » S » Sex reversal

Sex reversal



Change of sexual identity in animals as influenced by an environmental variable, also by surgical or pharmacologic procedure.


For instance, the sexual identity of an animal can be altered from one sex to another with the induction of a steroid hormone.

Synonym: sex inversion

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... the dormant, right-side gonad is switched on, it develops into a male sex organ called an ovotestis. Scientists have found that an ovotestis will ... is however, unknown whether a hen that has undergone a spontaneous sex reversal and developed an ovotestis can sire offspring... http://www.urbanchickenpodcast.com/ucp-episode-018/ ...

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by enarees
Mon Feb 03, 2014 4:57 pm
Forum: Zoology Discussion
Topic: Forced bird's parthenogenesis
Replies: 4
Views: 3696

Re: Year 11 Meiosis helpp!!!

... the following: ⋅ red ⋅ blue ⋅ red with a bit of blue replaced ⋅ blue with a bit of ref replaced (a colour reversal of the previous case) Have a look at the images by BioNinja, at his page Meiosis

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by ChrisHoStuart
Wed Oct 16, 2013 9:36 am
Forum: Human Biology
Topic: Year 11 Meiosis helpp!!!
Replies: 3
Views: 4513

some clues from animal kingdom

"Some species, such as some snails, practice sex change: adults start out male, then become female (See also sex reversal). In tropical clown fish, the dominant individual in a group becomes female while the other ...

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by surgeongirl
Wed Sep 11, 2013 6:44 pm
Forum: Evolution
Topic: Gender divison in two opposites is greatest mistake of manki
Replies: 27
Views: 36509

Re: Evolution or De-evolution?

... I can't think of any evidence that suggests that survival traits are lost in genes. In the case you mention of plants bred to be resistant, their reversal to an older type in the absence of the threat is a simple reversion to a 'setting' which is quite recent. If we carried antibodies to every ...

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by animartco
Sat Sep 07, 2013 3:15 pm
Forum: Evolution
Topic: Evolution or De-evolution?
Replies: 52
Views: 56839


... become incapable of doing full time physical work. Today people have become incapable of even walking - they need a car to go a short distance. Reversal is not possible - there is not enough land for all people to plough. And if we continue with the present city based lifestyle we will continue ...

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by animartco
Sun Mar 11, 2012 4:11 pm
Forum: Ecology
Topic: Industrial Society Destroys Mind and Environment
Replies: 45
Views: 61545
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