AP BIOLOGY

Detailed explanation-1: -Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb.

Detailed explanation-2: -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-3: -Hh is an example of a heterozygous gene. A heterozygous gene is a gene that carries two different alleles and can be represented by a small letter and a big letter (Hh or hH).

Detailed explanation-4: -Conventions and terms used in explaining genetic problems 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-5: -(HEH-teh-roh-ZY-gus JEE-noh-tipe) The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles (compound heterozygote).