AP BIOLOGY

Detailed explanation-1: -A dominant allele is denoted by an uppercase letter such as H. A recessive allele is denoted by a lowercase letter such as h. A homozygous genotype contains two identical alleles. An individual can either be homozygous dominant (ex: HH) or homozygous recessive (ex: hh).

Detailed explanation-2: -Dominant alleles are written as a capital letter (H), and recessive alleles as a small (lower case) version (h) of the same letter. whereas one with two different forms (Hh) is called heterozygous (a heterozygote)-also called a hybrid.

Detailed explanation-3: -A genotype of HH or hh is considered homozygous. The root in this word means “same” and they are the same case.

Detailed explanation-4: -Offspring whose genotype is either AA or Aa will have the dominant trait expressed phenotypically, while aa individuals express the recessive trait.