Answer:
B
Explanation:
I think so ................
<span>by collecting “proxy data” from tree rings, ice cores, and historical records</span>
Sister chromatids have different alleles although carry same genes on same loci. So if it doesn't happen so, like if there are same alleles on sister chromatids then there is a problem in its formation. i.e., male and female alleles haven't contributed equally ( may be an error during their segregation process ). And obviously it doesn't happen in a real cell so we must understand this point. Because normally whenever it happens there's one half from the male and one half from the female. (i.e. maternal and paternal alleles contribute equally).
I hope you get the answer!!!
The female reproductive system<span> is made up of seven organs. They are ovary, fallopian tubes, uterus, cervix, and vagina. Basically the main reproductive organ is the ovary</span>
the answer would be b because b is the only one that changes while a and c does not change for their type.
hope this helps! ❤ from peachimin :)
