REVIEW CHAPTER TEN GENETICS

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

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

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

Number Four  Looking at the punnet square below, write the PHENOTYPIC ratio:

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

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

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?

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

Number Nine  What is the genotype ratio for the following punnet square?

Number Ten  Fill in the blanks:  1.  2. 