Human Genetics. 1. Describe Gregor Mendel’s life and the experiments he conducted.

2. Identify the following as homozygous dominant, homozygous recessive or heterozygous:

a. HH

b. Hh

c. Hh

3. Identify the potential gametes that can be produced by parents with the genotypes of HH and Hh.

4. Do a monohybrid cross Punnett square to determine the possible genotypes of the following crosses:

HH and Hh

What is the ratio of dominant to recessive genotypes (the letter combinations)?

What is the ratio of dominant to recessive phenotypes (what the offspring will look like)?

Hh and Hh

What is the ratio of dominant to recessive genotypes (the letter combinations)?

What is the ratio of dominant to recessive phenotypes (what the offspring will look like)?

Hh and hh

What is the ratio of dominant to recessive genotypes (the letter combinations)?

What is the ratio of dominant to recessive phenotypes (what the offspring will look like)?

5. Identify the following as homozygous dominant, homozygous recessive or heterozygous:

a. HH

b. Hh

c. Hh

6. If a person has the dominant phenotype, but is curious about whether they have the heterozygous or homozygous dominant genotype, how could they do a test cross to see what the options are?

7. What is Mendel’s Law of Segregation?

8. What is a homologous chromosome? Use this image to help you describe this. image from cyberbridge.mcb.harvard.edu

9. Fill in the dihybrid Punnett square for the following cross:

WwSs with WwSs