Eukariotik have nueclious but prokaryotic does not. Learned this a couple months ago
I'm almost certain that the answer would be X and Y
Hoped this helped!
<span>Autosomal recessive is one of several ways that a trait, disorder, or disease can be passed down through families. An autosomal recessive disorder means two copies of an abnormal gene must be present in order for the disease or trait to develop</span>
<span>This theory is called punctuated equilibrium. In this theory it is explained that there are very long periods of no change at all to a species, yet there are also bursts of evolutionary change interspersed within the time period. The period of remaining the same throughout time (most of the time) is called stasis, and is present within this theory of punctuated equilibrium.</span>
Answer:
Answer is A signal is sent down an exon within a nerve cell.
Explanation: