Lesson 1: Introduction to Genetics Answers

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1
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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.
2
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What controls traits and inheritance?

A
gametes
B
nucleic acids
C
proteins
D
temperature
3

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.
5

Which statement describes Mendel’s hypotheses regarding gametes?

A
A gamete carries two genes for a trait.
B
A gamete carries one allele for a gene.
C
A gamete can carry multiple alleles for a trait.
D
Some gametes are dominant and some are recessive.

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