why are the seal radius and ulna shorter and thicker than th

why are the seal radius and ulna shorter and thicker than the human bones? Why are the bat digits so long?

How meiosis contributes to establishing genetic variation in populations?

What type of mutation that can affect the function of a gene without affecting the level of the gene’s expression. how?

What type mutation that can affect the function of a gene without affecting the biochemical function the gene product (the protein). how?

which type of mutation that can affect the function of a gene without actually being a mutation in that gene, but rather, in a different gene, explaining how it is possible to have this type of trans-effect.

Solution

Radius and ulna are the bones of forelimbs of both seal and human.

In seal , they form the pectoral flippers which can be used for swimming. Hence they are shorter and thicker than the human ones.

Bats have 4 long digits II-V , I digit is relatively smaller like hind digits. The elongated digits are adapted to help them in fights and clench their prey