The molecules which make up organisms and control the biochemical reactions that occur within them are?

what image you forgot to include it.

b because they naturally adapt to their environment plz mark brainliest

explanation:

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.