REVIEW CHAPTER TEN
GENETICS

Write down a genotype that would display the heterozygous trait.

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In humans, brown eyes (B) are dominant over blue (b)*. A browneyed 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

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

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Looking at the punnet square below, write the PHENOTYPIC ratio:

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

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

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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?

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Mitosis results in two
____________ cells
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Meiosis results in four
____________ cell.

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What is the genotype ratio for the following punnet square?

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Fill in the blanks:
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1.
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2.
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3.
.
1.
.
3.
.
2.