Answer:
By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition.
It was plants maintained photothenysis . global oxygen increase very important.but natural do it
That would be the chloroplasts. They are small cells in a leaf that store chlorophyll.
Chromosomes keep dna which is what makes you look like you