This was a discussion in one of my classes. My friend said that the outcome would be gigantic testicles but I don't really believe him.
2007-05-14 12:43:47 · 7 answers · asked by Paul A 2 in Science & Mathematics ➔ Biology
Definitely not. The mom's gamete, the egg, would have to carry a Y chromosome, and that in the first place is not possible, as fertile women are XX only. Futhermore, some of the only truly important information on the Y chromosome is a gene known as SRY -- it is responsible for starting male development. Having two would probably cause increased testosterone levels, which would lead to over-masculine characteristics, but this situation doesn't happen in the first place. However, the X chromosome is vital to development for both males and females, and at least one copy is needed for a human to develop. If a developing organism's genome is messed up enough that it cannot be compensated for, it will spontaneously abort -- this is what would happen in the case of a YY human. You're right, your friend is wrong!
2007-05-14 12:54:44 · answer #1 · answered by Natalia 3 · 1⤊ 0⤋
Missing an X chromosome is lethal and it would therefore be impossible for a person to have a YY chromosome. So yes it is possible for a human to have a YY chromosome, but that person would be dead as soon as they are born.
Hope I helped
2007-05-14 19:47:55 · answer #2 · answered by Icobes 2 · 3⤊ 0⤋
No. I think its impossible. Because only ur dad (male) has a Y chromosome, women have XX. Therefore it doesn't seem likely.
2007-05-18 19:03:07 · answer #3 · answered by Vicky 2 · 0⤊ 0⤋
You can be XYY, or XXYY, or even X with no Y, but you need at least one X. YY is lethal, probably well before you are born.
2007-05-14 19:58:49 · answer #4 · answered by Anonymous · 1⤊ 0⤋
At least one X has to be present for the oganism to develop.
XO - Turner syndrome, female
YO - lethal
XYY- "supermale". Studies indicate that individuals with this rare
disorder may be prone to violence. Doubt if it has anything
to do with the size of anything.
2007-05-14 23:05:13 · answer #5 · answered by ursaitaliano70 7 · 0⤊ 0⤋
Impossible.
XX + XY= XX , XY , XXY , XXX.........not YY.
2007-05-15 01:19:11 · answer #6 · answered by Bonga 1 · 0⤊ 0⤋
maybe if you could get two man to mate...
2007-05-16 00:05:10 · answer #7 · answered by Thomas L 2 · 0⤊ 0⤋