D. All of the above. Trenches are the deepest known point on Earth. Trenches are formed from subduction or the movement of tectonic plates. Water pressure is extremely high in trenches. The bottom of a trench exerts more than 1,000 times the atmospheric pressure at sea level.
If a mother is a carrier of the disease, her genotype is Cc (heterozygous). Father’s genotype is CC (dominant homozygous) <span>Parents: Cc x CC</span> F1: CC CC Cc Cc <span>This means that the chances are 50% that their first child will be a carrier of cystic fibrosis (Cc).</span>
