Human Inheritance Quiz
Question 1: A genetic disorder that is sex-linked cannot also be ___________________.
A. autosomal
B. all of these are possible
C. recessive
D. dominant
Question 2: Sickle cell anemia is an autosomal recessive disorder. A person with the disorder and a person that is a carrier mate. (A carrier has the allele for the trait but does not express it.) What is the chance that their offspring will develop sickle cell anemia?
A. 100%
B. 75%
C. 50%
D. 25%
Question 3: According to the pedigree below, this trait is ____________________.
A. Sex-linked dominant
B. Sex-linked recessive
C. autosomal recessive
D. autosomal dominant
Question 4: Nondisjunction in meiosis II results in: ______________________
A. One cell missing a chromosome, one cell with missing a chromosome and two healthy cells.
B. Two cells missing a chromosome and two healthy cells.
C. Two cells with an additional chromosome and two healthy cells.
D. Two cells missing a chromosome and two cells with an additional chromosome.
Question 5: In humans, how many alleles of genes found on the X chromosome do male have?
A. 0
B. 1
C. 2
D. 4
Question 6: What is the genotype of the unshaded individuals in the pedigree below?
A. Either AA or Aa
B. AA
C. Aa
D. aa
Question 7: Genes on the X chromosome are called ______________.
A. autosomal
B. sex-linked
C. somatic
D. epistatic
Question 8: The sex of the offspring is determined by _____________.
A. the mother only
B. the father only
C. both the mother and the father.