In guinea pigs, the allele for short hair is dominant. If all the guinea pigs are born short haired what are the possible genotypes of the parents? (There are two possible combinations.)

Two heterozgyous tall pea plants are crossed. What is the expected phenotypic outcome for the offspring?

If one allele for a trait is dominant and the other allele is recessive, which trait will be visible? The dominant allele or the recessive allele?

What is the genotype for a pea plant heterozygous for round seeds (R), and homozygous recessive for green seeds (y)?

Using the dihybrid cross and key provided, what is the probability of the offspring being tall and white?

Snowshoe hares can be found living in the Rocky Mountains of New Mexico. During the summer months, when there is no snow on the ground, the snowshoe hare’s coat color is typically brown. During the winter months, when the mountains are covered in snow, the snowshoe hare’s coat is typically white. Which statement describes the genetic basis for the seasonal changes in coat color?

A genetic cross involving two unlinked genes is represented. AaGG x aaGg

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

In Texas Longhorn cattle, coat coloration is an inherited trait. What is the genetic basis of coat-color variation in Texas Longhorn cattle?

7 When a new mutation occurs in a somatic cell of a sexually reproducing organism, what percentage of the individual’s offspring are likely to inherit the mutation?

Some angelfish colors are determined by codominance. Possible phenotypes and genotypes of angelfish colors are shown.

Which table shows the expected phenotypes of offspring resulting from a cross between a black angelfish and a black-lace angelfish?

In sheep, producing white wool (W) is dominant to black wool (w), and having brown eyes (E) is dominant to blue eyes (e). A cross of two heterozygous sheep is shown in the Punnett square below

Which of the following describes an outcome of this cross?

Coat color in cats is inherited by X-linked genes, with alleles for black and orange-brown. The alleles and phenotypes are as given below.

A cross between an orange-brown male and a homozygous black female produce four kittens. What is the phenotypic probability of the offspring?

The table below lists human blood group genotypes and phenotypes.

Why is the AB phenotype a result of codominance?

When red carnations are crossed with white carnations, the resulting flowers are pink. Pink carnations are an example of what type of inheritance pattern?

A Punnett square of red (R) and white (r) flower colors is shown below.

Which explanation describes how the presence of a white flower color occurred in the offspring?

This diagram shows a diploid cell with two pairs of homologous chromosomes.

Due to independent assortment, what is the possible genetic make-up of gametes produced by this organism?

In human genetics, brown eyes (B) are dominant over blue eyes (b). A brown-eyed man is heterogeneous (Bb). He marries a blue-eyed woman. What is the probability of their child having blue eyes?

In screech owls, red feathers are dominant over gray feathers. If two heterozygous red-feathered owls are mated, what percentage of their offspring would be expected to have red feathers?