Review Chapter ten Genetics

1. Review Chapter tenGenetics

2. Number One Write down a genotype that would display the heterozygous trait.

3. Number Two • In humans, brown eyes (B) are dominant over blue (b)*. A brown-eyed man marries a blue-eyed woman and they have three children, two of whom are brown-eyed and one of whom is blue-eyed. Draw the Punnett square that illustrates this marriage

4. Number Three • Who is the father of genetics? What did he use to do his experiments?

5. Number Four • Looking at the punnet square below, write the PHENOTYPIC ratio:

6. Number Five • The different forms of a gene are called: • A. Allele • B. Characters • C. Chromosomes • D. Phenotype

7. Number Six • If an organism has a diploid number of 20, what would their haploid number be?

8. Number Seven • The gene for tallness (T) is dominant over the gene for shortness (t) in pea plants. A homozygous dominant pea plant is crossed with a heterozygous pea plant, and 200 seeds are produced. Approximately how many of these seeds can be expected to produce plants that are homozygous dominant?

9. Number Eight • Mitosis results in two ____________ cells • Meiosis results in four ____________ cell.

10. Number Nine • What is the genotype ratio for the following punnet square?

11. Number Ten • Fill in the blanks: • 1. • 2. • 3. 1. . 2. . 3. .