Which pair are heterozygous?

What is the term for the alleles for a trait that are always exhibited if they are present in the organism's genes?

What is the term for alleles for a trait that are only exhibited if an organism inherits two of them (aa)?

The different forms of a gene are called

A heterozygous tall pea plant (Tt) is crossed with a short plant (tt). The probability that an F1 plant will be tall is?

Suzette owns a litter of rabbits. There are three black rabbits and one white rabbit. Black coat color (B) is dominant to white coat color (b). What most likely are the genotypes of the parents?

Which of the following are genotypes for blood type B?

Punnett Square: A man is homozygous for the B allele, and a woman is type O. What are ALL the possible blood types of their baby?

If two parents have type AB blood, what is the probability that their child will have type O blood?

The woman who is colorblind marries a man with normal vision. What is the probability that their sons will be colorblind?

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X ^R X ^r ?

If a father is Homozygous Type A and a mother is AB, what is the probability for a child with AB blood? 

How many offspring did Walter and Suzanne have?

Human height occurs in a continuous range because it is affected by the interaction of several genes, making it a