Copy of 25- 26 Dihybrids Quiz AAC (5/2/2026)

Cardi B is pregnant with her second child; however, she is unsure of who her baby daddy is this time. She has Type B blood. Her baby has Type O blood.

Her list of potential baby daddies and their blood types are as follows: Drake is Type A, Travis Scott is Type B, Kendrick Lamar is Type AB, and J. Cole is Type O.

Which of the following could NOT be her baby daddy?

Red-green colorblindness is an X-linked recessive condition where X^N represents normal vision and Xⁿ represents colorblindness.

A woman who is a carrier for colorblindness mates with a man who is colorblind.

What percentage of their total offspring are expected to be carriers for the condition?

In the common house fly, eye color and body color may each be determined by one gene. The allele for red eye color is dominant to white eye color and tan body color is dominant to black.

A female house fly with the genotype RrTT has what combination of alleles in her gametes? Select all that apply.

A genetic cross involving two unlinked genes is represented.

BbTT x bbTt

Which genotype is NOT possible in the offspring produced by the cross?

Fur color and eye color are inherited traits in panthers. Tan fur (T) is dominant to black fur (t) and green eyes (G) are dominant to yellow eyes (g). The alleles for black fur and yellow eyes are recessive.

If a male who is heterozygous for tan fur and homozygous recessive for yellow eyes mates with a female who is heterozygous for both traits, what would be the genotype of an offspring with black fur and yellow eyes?

In chameleons, green scales (G) are dominant to blue scales (g) and a long tail length (T) is dominant to a short tail length (t). If a chameleon who is heterozygous for both traits mates with another chameleon who is heterozygous for both traits, what is the expected phenotypic ratio of the offspring?

Mice have two unlined allele pairs that affect fur color. The table shows how allele pairs affect fur color. The term "agouti" describes fur with pigmentation that changes in each hair rom the shaft to the tip, giving the fur a banded appearance. Mice with the aa allele pair are albino, regardless of their second allele-pair combination.

What is the probability of albinism in the offspring of a cross between two mice with AaBb alleles?

If several pea plants with the genotype TTYy are crossed with pea plants with the genotype Ttyy, what percentage of the offspring will be expected to have the TTYy allele combination?

Facial dimples and free earlobes are both considered dominant human traits. What are the expected phenotypes of the offspring of a female with dimples and free earlobes (DDFf) and a male with no dimples and attached earlobes (ddff)?

In zebrafish, blue body color (B) is dominant to silver (b), and round fins (R) are dominant to pointed fins (r). Two zebrafish that are heterozygous for both traits (BbRr) are crossed.

What is the probability that an offspring will have silver body color and pointed fins?

In bearded dragons, rough skin is dominant to smooth skin and spikes are dominant to no spikes.

A male who is homozygous for rough skin and spikes mates with a female who is homozygous for smooth skin and no spikes.

What is the probability that an offspring has rough skin and spikes?

In a rare species of tree frog, green skin is dominant to blue skin and long tongues are dominant to short tongues. A homozygous green-skinned tree frog that is heterozygous for having a long tongue is crossed with a blue-skinned tree frog that has a short tongue.

What is the probability of having offspring that are heterozygous for both traits?