Biogenesis, the fir tree began life when fertilization occurred to produce a singlee cell.
The answer is C. Organelles
Different forms of a given gene are known as "alleles". Alleles are essential for the formation of life and add to diversity both within and outside the organism itself in many ways.
Answer:
because stagnat water contains bacteria and it is the breeding place of mosquitoes
<span>Some of the more common single-gene disorders include cystic fibrosis, hemochromatosis, Tay-Sachs, and sickle cell anemia.
Even though these diseases are primarily caused by a single gene,
several different mutations can result in the same disease but with
varying degrees of severity and phenotype.</span>
