AP BIOLOGY

Detailed explanation-1: -In pedigrees, heterozygous individuals are represented by half-shaded symbols (just like carriers in pedigrees for sex-linked traits).

Detailed explanation-2: -Tt represents a heterozygous genotype.

Detailed explanation-3: -A half-shaded circle or square indicates that a person is a carrier of the trait. A completely shaded circle or square indicates that a person expresses the trait. A circle or square that is not shaded indicates that a person neither expresses the trait nor is a carrier of the trait. death of the individual.

Detailed explanation-4: -Homozygous. Having two identical alleles for a particular gene. Heterozygous. Having two different alleles for a particular gene.

Detailed explanation-5: -An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype. In our example, this genotype is written Bb.