AP BIOLOGY

Detailed explanation-1: -Everyone inherits two alleles of the gene, one from each parent. The combination of your two alleles determines your blood type.

Detailed explanation-2: -An individual inherits two alleles, one from each parent, for any given genomic location where such variation exists. If the two alleles are the same, the individual is homozygous for that allele. If the alleles are different, the individual is heterozygous.

Detailed explanation-3: -There are three alleles for the ABO gene – IA, IB, and i, which produce type A, type B, and type O blood, respectively. IA and IB are dominant over i, therefore only people with ii (one gene from each parent) have type O blood.

Detailed explanation-4: -Multiple alleles exist at the population level and an individual can have only two alleles for the given gene. An individual can have only one type of allele (homozygous) or two different alleles (heterozygous).

Detailed explanation-5: -Despite multiple allelism, an individual will have only two alleles because an individual develops from a zygote which is the result of the fusion of sperm (carrying father set of(n)haploid chromosomes) and an egg (carrying mother set of haploid chromosomes). Sperm and an egg have only one gene (allele) for each trait.