Half Day Review

Black fur in guinea pigs is dominant over white fur Black fur in guinea pigs is dominant over white fur. If a black fur guinea pig mates with a white fur guinea pig what would be the phenotypes and genotypes of the offspring? Find the probability of a black offspring in a cross.

In humans, brown eyes are dominant over blue In humans, brown eyes are dominant over blue . A brown-eyed man marries a blue-eyed woman and the 4 children. What is the man’s genotype? What are the genotypes of the children?

If two people who are both carriers for a genetically inherited fatal recessive disease decide to become parents, what will be the odds that their children will also be carriers?

If a woman is homozygous normal and her husband is heterozygous for a genetically inherited recessive disease and they decide to become parents, what is the probability that they will have a healthy child?

If two parents are heterozygous for a genetically inherited dominant trait, what is the probability that they will have a child together who has this trait in his or her phenotype?

If two parents are homozygous for a genetically inherited recessive trait, what is the probability that they will have a child who does not have this trait in his or her phenotype?

Identify the following as heterozygous or homozygous: TT RR Rr Ss YY Uu Ww NN BB pp

Identify the following phases in mitosis/meiosis:

Mitosis vs. Meiosis