Biology Extra Credit Question... **ANSWER POSTED**

[Fudgie]

Year of the Rooster,

First off, I see why you are in the HONORS class....using your brain to LOCATE the answer. It does not mean you figured it out, you used your resources available to you to find the answer. Nothing wrong with that. tell your classmates that. They are just jealous that you are using your brain!!! LOL

Check out this link.....I believe it is humans and it is related to the GENDER not the SEX of the human. Read it, very interesting.

http://www.learner.org/courses/biology/units/gender/experts/vilain.html

OH YEAH, look at "How do you study gender? " section


the only thing that got me was the hint of the front legs are longer than the back legs.

The other thing to think about is Whales. They are mammals and their front legs are longer than the back legs. (technically) Most sites refer to them as legs not fins. Just food for thought. can't wait till tomorrow to find out the answer.

 

[Year of the Rooster]

Quote:
LOL! Yea, but they used Ask.com to see if they could find the answer and they saw my thread as the first option that popped up

And I guess they kind of expect me to find it because I've always been the animal nerd, answering all questions concerning animals. I've got a reputation at stake!

 

[EweSheep]

I would think Hyena or Giraffe would be in that catagory.....have to think alot on that one! My first thought would have been chimps but they dont transgender........hyena can do that since they do have both sex organs if I can remember correctly on the Animal channel.

 

[Year of the Rooster]

I did ask my teacher if it was a Giraffe, but alas!.... I was wrong.....

 

[sdshoars]

a platypus? i dunno....

 

[Guitartists]

Because of the early divergence from the therian mammals and the low numbers of extant monotreme species, it is a frequent subject of research in evolutionary biology. In 2004, researchers at the Australian National University discovered the Platypus has ten sex chromosomes, compared with two (XY) in most other mammals (for instance, a male Platypus is always XYXYXYXYXY). Furthermore, one of the Platypus' Y chromosomes shares genes with the ZZ/ZW sex chromosomes found in birds. This news further pronounced the individuality of the Platypus in the animal kingdom.[46] However it lacks the mammalian sex-determining gene SRY, meaning that the process of sex determination in the Platypus remains unknown.[47]​

 

[key west chick]

How bout a bat?

 

[CityGirlintheCountry]

A possum? They look pretty multi-gender to me, in an ugly, nasty, yucky sort of way.

 

[Year of the Rooster]

Couldn't be a possum, they're native to North America.... Remember, it has legs.... with the front being longer than the back.... I'm thinking Hyena but who knows... I'm still looking!

 

[seedcorn]

The phenotypic sex of an individual mammal is determined by the sex of its gonads, i.e. testes or ovaries. This in turn is determined by the presence or absence of a small region of the Y chromosome, located near the X-Y pairing region in man and on the short arm of the Y chromosome in the mouse. The testis-determining region of the Y appears to exert its primary effect by directing the supporting-cell lineage of the gonad to differentiate as Sertoli cells, acting at least in part cell-autonomously. The phenotypic sex of a germ cell, i.e. whether it undergoes spermatogenesis or oogenesis, is determined at least in the mouse by whether or not it enters meiotic prophase before birth. This depends not on its own sex chromosome constitution, but on its cellular environment. A germ cell in or near normal testis cords (made up mainly of Sertoli cells) is inhibited from entering meiosis until after birth; one that escapes this inhibition will develop into an oocyte even if it is in a male animal and is itself XY in chromosome constitution.

http://www.jstor.org/pss/2396843