Chapter 10
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 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
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.
3.
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1.
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3.
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2.
