1. In a species of mice, brown fur color is dominant to white fur color. When a brown
mouse is crossed with a white mouse all of their offspring have brown fur. Why did
none of the offspring have white fur?
2. Can a person’s genotype be determine by their phenotype? Why or why not?
3. Are incomplete dominant and co-dominant patterns of inheritance found in human
traits? If yes, give examples of each.
4. Consider the following genotype: Yy Ss Hh. We have now added the gene for height:
Tall (H) or Short (h).
a. How many different gamete combinations can be produced?
b. Many traits (phenotypes), like eye color, are controlled by multiple
genes. If eye color were controlled by the number of genes indicated
below, how many possible genotype combinations would there be in
the following scenarios?
5 Eye Color Genes:
10 Eye Color Genes:
20 Eye Color Genes:
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