Which statement concerning the normal inheritance of sex is correct?

a. all zygotes contain a Y chromosome


b. some ova contain a Y chromosome


c.all ova and all sperm cells contain an X chromosome


d. all over have an X chromosome, some sperm cells have an X chromosme, and some sperm cells have a Y chromsome

Which statement concerning the normal inheritance of sex is correct?
It's D.





Remember, a reproductive cell contains one half of each pair of chromosomes in the parent. A person is female if her gender-determining chromosomes are both X chromosomes. Therefore, whichever half of the pair ends up in any particular egg cell, it will be X because both are X.





Sperm cells, coming from men of course, have a chance of containing the y chromosome, and a chance of containing the X chromosome, since this chromosome pair in males is Xy.





a) all MALE zygotes contain a Y chromosome


b) NO ova contain a Y chromosome


c) all ova and SOME sperm contain an X chromosome


D) correct as stated.
Reply:all ova have X


some sperm cells have X, some have Y
Reply:D. ftw!!!