Two traits were observed for hamsters; color and tail length.

For color, black (B) is dominant over tan (b).

For tail length, short tails (S) are dominant over long tails (s).

What is the genotype for a heterozygous short-tailed hamster?

A student notes that an individual has attached earlobes, a recessive trait in humans. A cell is taken from this individual, and the alleles for the trait are isolated. What is the probability that one of the alleles was inherited from the individual's mother?

A heterozygous Type A parent is crossed with a heterozygous Type B parent.

What genotypes will be crossed?

A heterozygous Type A parent is crossed with a heterozygous Type B parent.

What percentage of offspring is expected to have Type o blood?

A heterozygous Type A parent is crossed with a heterozygous Type B parent.

What percentage of offspring is expected to have Type AB blood?

In four-o'clock flowers, the red allele (R) shows incomplete dominance over the white allele (W).

What would be the color of a flower with one red allele and one white allele (RW)?

In Camellia flowers, petal color is inherited co-dominantly with the possible colors of red, white, and red and white spots. What would be the chance of getting a white flower if you cross a spotted flower with a spotted flower?

The chart shows a dihybrid cross between pea plants. What are the genotypes of the parents in this cross?