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This quiz contains 12 questions from a mix of 1 subtopics.
Explain how genetic diversity influences the process of natural selection.
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Over time, the process of natural selection leads to:
no change in the population's adaptation to the environment
random changes in the population's adaptation to the environment
populations becoming more adapted to their environment
populations becoming less adapted to their environment
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Which of the following statements about genetic diversity is FALSE?
it is the total number of different alleles in a population
it leads to variation in observable traits
it influences natural selection
it is always caused by beneficial mutations
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Which of the following is NOT a step in the process of natural selection?
advantageous alleles are passed down to offspring
individuals with advantageous traits are more likely to reproduce
genetic variation emerges within a population due to random mutations
organisms actively adapt to their environment
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Genetic diversity influences natural selection because:
organisms with advantageous traits are less likely to survive and reproduce
it leads to less variation in observable traits
different combinations of alleles result in different proteins
all of the above
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When antibiotics are used, what happens to the bacteria population?
bacteria stop reproducing
all bacteria die off
bacteria become more susceptible to antibiotics
only resistant bacteria survive
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How do resistant bacteria pass on their resistance to offspring?
by passing on specific alleles
by creating a protective environment
by actively teaching their offspring
by increasing mutation rates
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Which of the following is NOT a typical consequence of antibiotic resistance in bacteria?
complicated treatment options
increased healthcare costs
raised mortality rates in humans
increased prevalence of viral diseases
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Which type of selection favours extreme phenotypes?
directional selection
stabilising selection
both of the above
neither of the above
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Which type of selection narrows the normal distribution curve?
directional selection
stabilising selection
both of the above
neither of the above
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Antibiotic resistance in bacteria is an example of:
directional selection
stabilising selection
both of the above
neither of the above
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Human birth weight, where infants of average weight have higher survival rates, is an example of:
directional selection
stabilising selection
both of the above
neither of the above
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