Chapter 11-1-5 sec. review questions

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Name: ___________________________________________
11-1 Section Review (1)
1. What are dominant and recessive alleles?
2. What is segregation? What happens to alleles during segregation?
3. What did Mendel conclude determines biological inheritance?
Name: ___________________________________________
11-1 Section Review (2)
1. Describe how Mendel cross-pollinated pea plants.
2. Why did only about one fourth of Mendel’s F2 plants exhibit the recessive
traits?
3. Why were true-breeding pea plants important for Mendel’s experiments?
Name: ___________________________________________
11-2 Section Review (1)
1. How are the principles of probability used to predict the outomes of genetic
crosses?
2. How are Punnet squares used?
3. What is probability?
Name: ___________________________________________
11-2 Section Review (2)
1. Define the terms genotype and phenotype.
2. An F1 plant that is homozygous for shortness is crossed with a heterozygous
F1 plant. What is the probability that a seed from the cross will produce a
tall plant. Use a Punnett square to expalain.
Name: ___________________________________________
11-3 Section Review (1)
1. Explain what independent assortment means.
2. Describe two inheritance patterns besides simple dominace.
Name: ___________________________________________
11-3 Section Review (2)
1. What is the difference between incomplete dominance and codominance?
2. Why are fruit flies an ideal organism for genetic research?
Name: ___________________________________________
11-4 Section Review (1)
1. Describe the main results of meiosis.
2. What are the principal differences between mitosis and meiosis?
3. What do the terms diploid and haploid mean?
Name: ___________________________________________
11-4 Section Review (2)
1. What is crossing-over?
2. In human cells 2N = 46. How many chromosomes would you expect to find in
a sperm cell? In an egg cell? In a white blood cell? Explain.
Name: ___________________________________________
11-5 Section Review (1)
1. How does the principle of independent assortment apply to chromosomes?
2. What are gene maps, and how are they produced?
Name: ___________________________________________
11-5 Section Review (2)
1. How does crossing-over make gene mapping possible?
2. If two genes are on the same chromosome but usually assort independently,
what does that tell you about how close together they are?
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