Because of the fact that female mammals have chromosomes from both parents (from the father and from the mother) and all cells have the same inactivated X chromosome female mammals are considered to be mosaic <span>of the maternal and paternal cells.</span>
<span>everything has different aesthetic qualities you can put a price on it.
Hope this helps!
-Payshence xoxo</span>
I had this question when I took a biology class cuz I chose to study a lot on paleontology :)
It’s that there’s fossils of animals in geological strata that are older than the Cambrian explosion.
Some fossils from the ediacaran period have been discovered in layers aged to the Cambrian
I think the answer will be B
