Question 1
Match the following term to its definition.
Alleles
Phenotype
Gametes
Gonads
Genes
Crossing over
Meiosis
Mitosis
Segregation
Quantitative traits
A. Sex cells
B. Results in a reduced number of chromosomes
C. Results in two identical daughter cells
D. Small segments of DNA that code for proteins
E. Alternate forms of genes
F. Sex organs
G. Occurs during prophase I of Meiosis I
H. Physical traits
I. Traits with a wide range of phenotypes like eye color, height, and intelligence
J. The separation of a pair of alleles
Question 2
Assume the gene for freckles is dominant (F). A woman with freckles has a son that does not. What would have to be the genotype of the mother?
Question 3
Assume that Tay-Sachs disease only affects homozygous recessive individuals. If two parents are carriers, what are the chances that their child would have the disease?