If new genetic variation in the experimental populations arose solely by spontaneous mutations, then the most effective process for subsequently increasing the prevalence of the beneficial mutations in the population over the course of generations is
_____. A) transduction
B) binary fission
C) conjugation
D) transformation
B
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In addition to mutation, what other mechanism allows for new genetic information to be introduced into a population? Explain your answer.
What will be an ideal response?
Variation in the effects of the environment on different genotypes is known as:
A. norm of reaction. B. complex variation. C. genotype-by-genotype variation. D. genotype-by-environment interaction. E. environment-by-environment variation.
In humans, XO individuals are females with Turner syndrome and XXY individuals are males with Klinefelter syndrome. Which of the following events cannot give rise to a Klinefelter male?
A) nondisjunction at meiosis I in the mother B) nondisjunction at meiosis II in the mother C) nondisjunction at meiosis I in the father D) nondisjunction at meiosis II in the father E) All of the choices could give rise to a Klinefelter male.
Once milk has gone through the process of pasteurization it is considered sterile.
A) True B) False