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6. Which statement about an individual that is homozygous for an allele is false? a. Each of its cells possesses two copies of that allele. b. Each of its gametes contains one copy of that allele. c. It is true-breeding with respect to that allele. d. Its parents were necessarily homozygous for that allele. e. It can pass that allele to its offspring. 7. Suppose Mendel had an assistant who sometimes forgot to emasculate the short plants before placing pollen from the homozygous tall plants on the pistils of the short plant flowers. As a result, about 2/3 of the pollen that fertilized the short flowers came from short plants. What fraction of the progeny from this cross would have been tall? (Recall that the trait of tall is dominant to short.) a. 1/3 b. 1/2 c. 2/3 d. 3/4 e. All the progeny from this cross would have been tall. 8. Segregation of alleles occurs a. during gamete formation. b. at fertilization. c. during mitosis. d. during the random combination of gametes to produce the F2 generation. e. only in monohybrid crosses. 9. A pea plant with red flowers is test crossed, and one-half of the resulting progeny has red flowers, while the other half has white flowers. Therefore, the genotype of the test-crossed parent was a. RR. b. Rr. c. rr. d. either RR or Rr. e. either Rr or rr. 10. One of the major contributions of Mendel to the study of genetics was a. the use of a quantitative approach to analyze data. b. a complete description of the process of meiosis. c. the observation that phenotypes are affected by the environment. d. the discovery that dominance is always complete. e. the finding that heritable traits combine or blend together.

6. Which statement about an individual that is homozygous for an allele is false?
a. Each of its cells possesses two copies of that allele.
b. Each of its gametes contains one copy of that allele.
c. It is true-breeding with respect to that allele.
d. Its parents were necessarily homozygous for that allele.
e. It can pass that allele to its offspring.
7. Suppose Mendel had an assistant who sometimes forgot to emasculate the short plants
before placing pollen from the homozygous tall plants on the pistils of the short plant flowers.
As a result, about 2/3 of the pollen that fertilized the short flowers came from short plants.
What fraction of the progeny from this cross would have been tall? (Recall that the trait of tall is
dominant to short.)
a. 1/3
b. 1/2
c. 2/3
d. 3/4
e. All the progeny from this cross would have been tall.
8. Segregation of alleles occurs
a. during gamete formation.
b. at fertilization.
c. during mitosis.
d. during the random combination of gametes to produce the F2 generation.
e. only in monohybrid crosses.
9. A pea plant with red flowers is test crossed, and one-half of the resulting progeny has red
flowers, while the other half has white flowers. Therefore, the genotype of the test-crossed
parent was
a. RR.
b. Rr.
c. rr.
d. either RR or Rr.
e. either Rr or rr.
10. One of the major contributions of Mendel to the study of genetics was
a. the use of a quantitative approach to analyze data.
b. a complete description of the process of meiosis.
c. the observation that phenotypes are affected by the environment.
d. the discovery that dominance is always complete.
e. the finding that heritable traits combine or blend together.

$6. Which statement about an individual that is homozygous for an allele is false? a. Each of its cells possesses two copies of that allele. b. Each of its gametes contains one copy of that allele. c. It is true-breeding with respect to that allele. d. Its parents were necessarily homozygous for that allele. e. It can pass that allele to its offspring. 7. Suppose Mendel had an assistant who sometimes forgot to emasculate the short plants before placing pollen from the homozygous tall plants on the pistils of the short plant flowers. As a result, about 2/3 of the pollen that fertilized the short flowers came from short plants. What fraction of the progeny from this cross would have been tall? (Recall that the trait of tall is dominant to short.) a. 1/3 b. 1/2 c. 2/3 d. 3/4 e. All the progeny from this cross would have been tall. 8. Segregation of alleles occurs a. during gamete formation. b. at fertilization. c. during mitosis. d. during the random combination of gametes to produce the F2 generation. e. only in monohybrid crosses. 9. A pea plant with red flowers is test crossed, and one-half of the resulting progeny has red flowers, while the other half has white flowers. Therefore, the genotype of the test-crossed parent was a. RR. b. Rr. c. rr. d. either RR or Rr. e. either Rr or rr. 10. One of the major contributions of Mendel to the study of genetics was a. the use of a quantitative approach to analyze data. b. a complete description of the process of meiosis. c. the observation that phenotypes are affected by the environment. d. the discovery that dominance is always complete. e. the finding that heritable traits combine or blend together.$

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