In humans, the allele for a widow’s peak is dominant to the allele for a straight hairline. in a family with three children, two of the children have a straight hairline and one child has a widow’s peak. which of the following is possible?
a. both parents are homozygous for a straight hairline.
b. both parents are homozygous for a widow’s peak.
c. one parent is homozygous for a straight hairline, and the other is heterozygous.
d. one parent is homozygous for a widow’s peak, and the other is homozygous for a straight hairline.

4. rat liver is able to metabolize glucose by both the glycolytic and the pentose phosphate pathway. which of the following are properties of both the glycolytic and pentose phosphate pathway? a. nad+ is involved b. co2 is liberated c. phosphate esters are intermediates d. glyceraldehyde 3-phosphate is an intermediate e. fructose 6-phosphate is an intermediate4. rat liver is able to metabolize glucose by both the glycolytic and the pentose phosphate pathway. which of the following are properties of both the glycolytic and pentose phosphate pathway? a. nad+ is involved b. co2 is liberated c. phosphate esters are intermediates d. glyceraldehyde 3-phosphate is an intermediate e. fructose 6-phosphate is an intermediate