The characteristics that best describe the tail of a phospholipid molecule are?

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of

What was darwins theory of common decent

Which of these correctly describes the difference between processes that take place in prokaryotic and eukaryotic cells?