Chapter 7

___________ is when both alleles are expressed equally in the phenotype of the heterozygote

used to determine the expected percents of different genotypes in offspring

An adult's height is determined by

• multiple alleles.

• incomplete dominance.

• genes and the environment.

• polygenic inheritance.

All the traits Mendel studied were controlled by one gene that had only two possible alleles

• true

• false

__________ is the likelihood, or chance, that a certain event will occur

• probability

• statistics

Paired alleles always separate and go to different gametes during ___

• mitosis

• meiosis

_________ dominance occurs when the dominant allele is not completely dominant

If a parent has an AA genotype, the probability of their child inheriting an a allele from that parent is __ __________.

• 25

• 50

• 0

If two parents are each heterozygous, the probability of their child being homozygous recessive is ____ ________.

• 0%

• 25%

• 50%

If one parent is homozygous dominant and the other parent is recessive, the probability that their child will be heterozygous is __ __________.

• 25%

• 50%

• 100%