Christina Marshall
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Quiz on Bio 110 Final: Chapter 16, created by Christina Marshall on 13/12/2017.

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Bio 110 Final: Chapter 16

Question 1 of 10

1

Based on Mendel's experimental crosses, what is the expected F2 phenotype ratio of a single factor cross?

Select one of the following:

  • 1:2:1

  • 2:1

  • 3:1

  • 9:3:3:1

  • 4:1

Explanation

Question 2 of 10

1

During which phase of nuclear division does Mendel's law of segregation physically occur?

Select one of the following:

  • Mitosis

  • Meiosis I

  • Meiosis II

  • All of the above

  • b and c only

Explanation

Question 3 of 10

1

An individual that has two different alleles of a particular gene is said to be

Select one of the following:

  • Dihybrid

  • Recessive

  • Homozygous

  • Heterozygous

  • Hemizygous

Explanation

Question 4 of 10

1

Which of Mendel's laws cannot be observed in a single-factor cross?

Select one of the following:

  • segregation

  • dominance/recessiveness

  • independent assortment

  • codominance

  • All of the above can be observed in a single-factor cross

Explanation

Question 5 of 10

1

During a ______________ cross, an individual with the dominant phenotype and unknown genotype is crossed with a _____________ individual to determine the unknown genotype.

Select one of the following:

  • single-factor, homozygous recessive

  • two-factor, heterozygous

  • test, homozygous dominant

  • single-factor, homozygous dominant

  • Test, homozygous recessive

Explanation

Question 6 of 10

1

A woman is heterozygous for an X-linked disorder, hemophilia A. If she has a child with a man without hemophilia A, what is the probability that the child will be a male with hemophilia A? (Note: The child could be a male or a female)

Select one of the following:

  • 100%

  • 75%

  • 50%

  • 25%

  • 0%

Explanation

Question 7 of 10

1

A gene that affects more than one trait is said to be

Select one of the following:

  • Dominant

  • Wild-type

  • Dihybrid

  • Pleiotropic

  • Heterozygous

Explanation

Question 8 of 10

1

A hypothetical flowering plant species produces blue, light blue, and white flowers. To determine the inheritance pattern, the following crosses were conducted with the results indicated:
blue x blue --> all blue
white x white --> all white
blue x white --> all light blue

Select one of the following:

  • simple Mendelian

  • X-linked

  • codominance

  • incomplete dominance

  • pleiotropy

Explanation

Question 9 of 10

1

Genes located on a sex chromosomes are said to be

Select one of the following:

  • X-linked

  • Dominant

  • Hemizygous

  • Sex-linked

  • autosomal

Explanation

Question 10 of 10

1

A man and a woman are both heterozygous for the recessive allele that causes cystic fibrosis. What is the probability that their first two offspring will have the disorder?

Select one of the following:

  • 1

  • 1/4

  • 1/16

  • 1/32

  • 0

Explanation

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