Heredity Unit Review

At what stage in the process of meiosis are homologous chromosomes lined up down the middle of the cell?

In a plant, yellow flowers are dominant over white flowers. A heterozygous flower is crossed with a homozygous recessive flower. What is (are) the genotype(s) of the offspring?

Which of Mendel's laws explains why two parents that show dominant traits can have an offspring with the recessive trait?

In chickens, black feathers are codominant with white feathers. Those chickens with both alleles show a mix of both feather colors. A black chicken is crossed with a white chicken. What percentage of the offspring will have only black feathers?

Which of the following is an advantage of asexual reproduction?

In the movie Lorenzo's Oil, what substance was destroying Lorenzo's myelin?

Colorblindness is a sex-linked trait. A colorblind man and a woman who does not carry the colorblindness allele have children. What is (are) the phenotype(s) of their children?

In which of the following stages of meiosis is genetic variation created?

The process of meiosis produces

In a certain flower, red flowers are incompletely dominant over white flowers. Two flowers are crossed and produce half red and half pink offspring. What are the genotypes of the parent plants?

In horses, black hair is dominant over chestnut hair. If two heterozygous horses are crossed, what will the possibilities be for the offspring?

In the genotype, Aa, the A represents a(an)

In human blood type, A and B are codominant and O is recessive to both. A man that is heterozygous for A blood has children with a woman that is homozygous for B blood. What are the phentoypes of their offspring?

At which stage in meiosis do the cells become haploid?

If sister chromatids do not separate during Anaphase II of meiosis, which of the following genetic disorders could occur?