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

A
the principle of genetics
B
the law of independent assortment
C
the law of segregation
D
the principle of dominance
3

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

A
25 percent white and 75 percent purple
B
50 percent white and 50 percent purple
C
100 percent purple
D
100 percent white
4

What is a gene?

A
a segment of DNA that is the basic unit of heredity
B
the different forms of a trait
C
the appearance or characteristics that are seen in an organism
D
an organism's allele combination
6

What does the notation Rr mean to geneticists?

A
dominant alleles
B
heterozygous alleles
C
recessive alleles
D
homozygous alleles
7

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

A
Seventy-five percent have freckles.
B
Seventy-five percent are Ff.
C
Twenty-five percent are Ff.
D
Twenty-five percent have freckles.
8

Which statement summarizes the law of segregation?

A
Gametes are passed in pairs, groups, or sets.
B
Gametes carry one allele for each trait.
C
Traits are passed independently of one another.
D
Traits that are dominant mask traits that are recessive.
9

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

A
law of segregation
B
law of independent assortment
C
principle of dominance
D
law of genetics
10

Why did Mendel study pea plants?

A
They reproduce sexually and have one trait that is easy to observe.
B
They reproduce asexually and have one trait that is easy to observe.
C
They reproduce sexually and have many traits that are easy to observe.
D
They reproduce asexually and have many traits that are easy to observe.

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