It must be successful at reproducing and surviving
Answer:
Chromatin is a substance within a chromosome consisting of DNA and protein. The DNA carries the cell's genetic instructions. The major proteins in chromatin are histones, which help package the DNA in a compact form that fits in the cell nucleus. Changes in chromatin structure are associated with DNA replication and gene expression.
Explanation:
The best definition to define gene flow is a<span>n important mechanism for transferring </span>genetic<span> diversity among populations which migrants into or out of the population.</span>
Photo receptors are attached to the retina and are most numerous specifically at the fovea