Quiz Quiz

Question 1

Which of Mendel's laws or principles explains that traits are passed from parents to offspring individually instead of as pairs, groups, or sets?

Revolt · Accepted Answer

C: the law of segregation

Question 2

A pea plant that has round seeds has the genotype Rr. It is crossed with a pea plant that has wrinkled seeds and the genotype rr. What is the probability that the offspring will have wrinkled seeds?

Revolt · Accepted Answer

C: 50 percent

Question 3

When Mendel crossed purebred purple flowering plants (PP) with purebred white flowering plants (pp), what were the flower colors of the resulting offspring?

Revolt · Accepted Answer

C: 100 percent purple

Question 4

What is a gene?

Revolt · Accepted Answer

A: a segment of DNA that is the basic unit of heredity

Question 5

Two plants are heterozygous for seed shape and have round seeds. If the two plants are crossed, what is the probability that the offspring will have wrinkled seeds?

Revolt · Accepted Answer

A: 25 percent

Question 6

What does the notation Rr mean to geneticists?

Revolt · Accepted Answer

B: heterozygous alleles

Question 7

Parents that are heterozygous for having freckles (dominant) are crossed. Which correctly describes their offspring?

Revolt · Accepted Answer

A: Seventy-five percent have freckles.

Question 8

Which statement summarizes the law of segregation?

Revolt · Accepted Answer

B: Gametes carry one allele for each trait.

Question 9

Which of Mendel's laws or principles states that gametes carry one allele for each trait?

Revolt · Accepted Answer

A: law of segregation

Question 10

Why did Mendel study pea plants?

Revolt · Accepted Answer

C: They reproduce sexually and have many traits that are easy to observe.

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