Laws of Inheritance Answers

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1
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Which statement best describes an understanding of genetics that would be missing without the work of Mendel?

A
The DNA codes for traits would not be known.
B
The protein codes for traits would not be known.
C
Some alleles are dominant, and some alleles are recessive.
D
Offspring receive two copies of each allele from each parent.
2
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Gregor Mendel’s research formed the basis of the field of

A
genetics.
B
dominance.
C
recessiveness.
D
selective breeding.
3

In pea plants, tall plant height is dominant over short plant height. If there are 200 short plants in the F2 generation from a cross that followed Mendel’s methods, about how many plants will be tall in that generation?

A
200
B
300
C
600
D
1,000
4

Which has the most control of traits and inheritance?

A
gametes
B
nucleic acids
C
amino acids
D
proteins
5

Why did Gregor Mendel use peas in his experiments?

A
Peas grow very slowly.
B
Pea reproduction cannot be controlled.
C
Peas normally produce very few offspring.
D
Peas have characteristics that have two forms.
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8

Which statement describes the offspring of the F1 generation when crossing a pea plant that is true breeding for green seeds with a pea plant that is true breeding for yellow seeds?

A
The green trait is the dominant trait.
B
The offspring will inherit one allele from each parent.
C
The offspring will have both green and yellow seeds.
D
Each offspring will have a unique set of alleles.
9

During an experiment, a scientist crosses a pea plant that has purple flowers with a pea plant that has white flowers. The plants that result from this cross in the F1 generation have both purple and white flowers. What can the scientist conclude?

A
White flowers are dominant over purple flowers.
B
Neither purple flowers nor white flowers are dominant.
C
The plants in the P generation were not true-breeding.
D
All the plants in the F2 generation will have purple flowers.
10

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