Saved Bookmarks
| 1. |
Whrit the determination of sex of body |
|
Answer» Answer: In HUMANS, sex is determined by sex chromosomes (XX females, XY males). The X and Y chromosomes harbor DRAMATICALLY DIFFERENT numbers and sets of GENES (about 1,000 genes on the X and only a few dozen genes on the Y), yet they originated from ORDINARY autosomes during the early evolution of mammals. |
|