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PCB 3043 Chapter 9 Questions and Correct
Answers
Classify the statement about asexual and sexual reproduction as
true or false:
Offspring may be produced from vegetative tissues of the parent
in asexual reproduction. Ans: True
Classify the statement about asexual and sexual reproduction as
true or false:
Harmful alleles may only be inherited by some offspring during
sexual reproduction. Ans: True
Classify the statement about asexual and sexual reproduction as
true or false:
Individuals may engage in costly or risky social behavior when
reproducing sexually. Ans: True
Classify the statement about asexual and sexual reproduction as
true or false:
Hermaphroditic organisms may self-fertilize to reproduce
asexually or cross-fertilize to reproduce sexually. Ans: False
Classify the statement about asexual and sexual reproduction as
true or false:
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On average, siblings produced asexually share about 50% of their
DNA sequence with each other. Ans: False
Classify the statement about asexual and sexual reproduction as
true or false:
A diploid parent always passes on two copies of its genes to its
offspring during sexual reproduction. Ans: False
How does the Red Queen hypothesis explain a fitness benefit of
sexual reproduction?
-Sexually reproducing organisms carefully choose their partners,
so only the fittest individuals mate and produce high quality
offspring.
-Offspring produced by sexual reproduction are less likely to
inherit rare genetic disorders than offspring produced by asexual
reproduction.
-Species that use sexual reproduction live longer and produce
more offspring than species that reproduce asexually.
-Sexual reproduction produces genetic variation that allows some
offspring to survive evolving parasites. Ans: -Sexual reproduction
produces genetic variation that allows some offspring to survive
evolving parasites.
Some species of freshwater snails can reproduce both sexually and
asexually, but asexual reproduction yields more offspring. Identify
the condition that favors sexual reproduction.
© 2025 All rights reserved
PCB 3043 Chapter 9 Questions and Correct
Answers
Classify the statement about asexual and sexual reproduction as
true or false:
Offspring may be produced from vegetative tissues of the parent
in asexual reproduction. Ans: True
Classify the statement about asexual and sexual reproduction as
true or false:
Harmful alleles may only be inherited by some offspring during
sexual reproduction. Ans: True
Classify the statement about asexual and sexual reproduction as
true or false:
Individuals may engage in costly or risky social behavior when
reproducing sexually. Ans: True
Classify the statement about asexual and sexual reproduction as
true or false:
Hermaphroditic organisms may self-fertilize to reproduce
asexually or cross-fertilize to reproduce sexually. Ans: False
Classify the statement about asexual and sexual reproduction as
true or false:
© 2025 All rights reserved
, 2 | Page
On average, siblings produced asexually share about 50% of their
DNA sequence with each other. Ans: False
Classify the statement about asexual and sexual reproduction as
true or false:
A diploid parent always passes on two copies of its genes to its
offspring during sexual reproduction. Ans: False
How does the Red Queen hypothesis explain a fitness benefit of
sexual reproduction?
-Sexually reproducing organisms carefully choose their partners,
so only the fittest individuals mate and produce high quality
offspring.
-Offspring produced by sexual reproduction are less likely to
inherit rare genetic disorders than offspring produced by asexual
reproduction.
-Species that use sexual reproduction live longer and produce
more offspring than species that reproduce asexually.
-Sexual reproduction produces genetic variation that allows some
offspring to survive evolving parasites. Ans: -Sexual reproduction
produces genetic variation that allows some offspring to survive
evolving parasites.
Some species of freshwater snails can reproduce both sexually and
asexually, but asexual reproduction yields more offspring. Identify
the condition that favors sexual reproduction.
© 2025 All rights reserved
