Environmental Genetic Variation Quick Check

Question

1 of 51 of 5 Items
Question
Genes contain specific instructions for how to make(1 point)
Responses

proteins.
proteins.

nucleotides.
nucleotides.

gametes.
gametes.

carbon.
carbon.
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Answer 1

The correct response is:

proteins.

Genes contain specific instructions for how to make proteins.

Answer 2

Epigenetic changes are generally(1 point)
Responses

not heritable changes in gene structure of a population.
not heritable changes in gene structure of a population.

heritable changes in genetic sequences of a population.
heritable changes in genetic sequences of a population.

heritable "on/off switches" for gene sequences due to environmental factors.
heritable "on/off switches" for gene sequences due to environmental factors.

not heritable genetic changes that are specific to an individual.

Answer 3

The correct response is:

not heritable changes in gene structure of a population.

Epigenetic changes typically refer to modifications that affect gene expression without altering the underlying DNA sequence and are often not passed on to the next generation.

Answer 4

Meiosis produces(1 point)
Responses

gamete cells
gamete cells

skin cells
skin cells

RNA
RNA

hydrogen molecules

Answer 5

The correct response is:

gamete cells.

Meiosis is the process that produces gametes, which are reproductive cells (sperm and eggs in animals).

Answer 6

Which factor could increase the possibility of mutations in your offspring?(1 point)
Responses

smoking tobacco
smoking tobacco

having a mutation on a non-gamete cell
having a mutation on a non-gamete cell

nothing because mutations are not inherited
nothing because mutations are not inherited

nothing because mutations are random

Answer 7

The correct response is:

smoking tobacco.

Exposure to harmful substances like tobacco can increase the likelihood of mutations in germ cells, which can then be passed on to offspring.

Answer 8

Epigenetics are different than mutations in that mutations:(1 point)
Responses

cannot be inherited
cannot be inherited

can change DNA sequences
can change DNA sequences

can be inherited
can be inherited

can change traits

Answer 9

The correct response is:

can change DNA sequences.

Epigenetics involves changes in gene expression without altering the underlying DNA sequence, while mutations involve actual changes to the DNA sequences themselves.