I think it is that the cytoplam divides
A gene plz don't report if this is not what your lookin for
If a boy exhibits a sex-linked trait that is carried on the X chromosomes, his mother carried at-least one allele for that trait.
The boy has a X chromosome inherited from his mother and he inherited Y chromosome from his father. So, his mother must carried at least one allele for that trait because he exhibits a sex linked trait that is carried on X chromosome.
They cannot live without water
