AP BIOLOGY

Detailed explanation-1: -The hair form gene shows incomplete dominance. Straight hair (SS) is dominant, curly hair (CC) is recessive, and wavy hair (SC) is heterozygous.

Detailed explanation-2: -Curly hair and straight hair are incompletely dominant alleles of one gene. A person with two curly alleles will have very curly hair. A person with two straight alleles will have straight hair. A person with one curly and one straight allele will have wavy hair!

Detailed explanation-3: -We can call the straight hair allele “S” and the curly hair allele “C.” Everyone has two copies of the hair texture gene. Their genotype will determine what kind of hair they have.

Detailed explanation-4: -Two common examples of incomplete dominance are height and hair color. Offspring will likely not have the exact same height or hair color as one of their parents but will often have a blend between the two parent’s phenotypes.

Detailed explanation-5: -Hair texture is an example of incomplete dominance. A person who is homozygous dominant HH has curly hair and they mate with a person who has straight hair (homozygous recessive hh).