Chromosomes exchange genetic material during

The physical appearance of an organism is called its

If two alleles are the same, they are said to be

A trait controlled by 4 alleles is said to have

Egg and sperm are both examples of

The genetic makeup of an individual is its

Which set of letters represent a homozygous dominant individual?

Which set of letters represent a heterozygous individual?

When two traits are crossed, and the offspring produced are "intermediate' or a blend of the two, this is known as what?

Keisha passes a local dairy farm that has many brown cows, but only a few white cows. A dominant allele produces brown hair in cows. A recessive allele produces white hair. Which characteristic of any brown cow can Keisha identify?

Two black rabbits are bred and produced 3 black offspring and 2 albino offspring. Assuming no mutations, which rabbits must be heterozygous?

Brown eyes (B) are dominant over blue eyes (b). A heterozygous brown eyed rabbit is crossed with a blue eyed rabbit. What fraction of their offspring will have blue eyes?

Suppose Brassica rapa plants have 2 alleles for dark green leaf color. One B. rapa plant has 2 alleles for dark green leaf color and has dark green leaves. Another B. rapa plant has 1 allele for dark green leaf color and 1 allele for yellow leaf color, and its leaves are dark green. Based on this information, which term best describes the relationship between these 2 alleles, in terms of phenotype?

In humans, pigmented skin is dominant to non-pigmented skin (albinism). What is the genotype of an individual with albinism?

An individual with the genotype AaBb is crossed with an individual with the genotype AaBb. What is the percent chance that their offspring will have the genotype AaBb? (Two Punnett Squares are needed to solve this problem)

Horses born to 2 palomino (golden-coated) horses have a 25% chance of having a white coat, a 25% of having a chestnut (brown), and a 50% chance of having a palomino coat. Which description of inheritance best explains the coat-color trait in these horses?

In cattle, roan coat color is mixed red and white hairs. This occurs with a heterozygous (Rr) genotype. Red cattle (RR) and white cattle (rr) have homozygous genotypes. Which of the following crosses could produce the HIGHEST percentage of roan (Rr) cattle?

Skin color, hair color, and eye color are inherited in this way. What type of inheritance is determined by many genes and results in a range of phenotypes like depicted in the graph?

Colorblindness is a sex-linked recessive trait (b). Normal vision (B) is dominant. Which genotype results in a female with normal vision?

Colorblindness is a sex-linked recessive trait (b). Normal vision (B) is dominant. Which genotype results in a colorblind male?

Colorblindness is a sex-linked recessive trait (b). Normal vision (B) is dominant. Which genotype results in a female carrier?

Colorblindness is a sex-linked recessive trait (b). Normal vision (B) is dominant. Which genotype results in a colorblind female?

Suppose that in humans, a certain type of colorblindness is a recessive, sex-linked trait. Which of these could NOT be a biological child of parents have the genotypes XB Xb and XB Y?

If a mother has type A blood and her baby has type B blood, which two of the following claims are correct?

A woman is searching for her biological father. She has type O blood. Which man can she eliminate from her search?

Which blood type can be given to a person with A, B, AB, or O blood types?

(In other words, which blood type is "the universal donor?")