THE MOLECULAR BASIS OF INHERITANCE
GENE MUTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The frequency of a population goes up and down with no observable effect on the health of a population.
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The mutation is higher in populations of organisms that produce fewer offspring and have shorter life spans.
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In a given population, individuals that possess this mutation have a greater rate of reproduction.
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The frequency of the mutation in a population, once it first appears, tends to increase over time.
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Detailed explanation-1: -Which of the following observations would support the claim that a particular mutation is neutral? The frequency of the mutation goes up and down with no observable effect on the health of a population.
Detailed explanation-2: -Which explanation supports that the mutation has a neutral effect? The mutation does not inhibit the organism from gaining nutrients from other foods.
Detailed explanation-3: -A mutation whose fixation is independent of natural selection is termed a neutral mutation. Therefore selective neutrality of a mutation can be defined by independence of its fixation from natural selection.
Detailed explanation-4: -Mutational effects can be beneficial, harmful, or neutral, depending on their context or location. Most non-neutral mutations are deleterious. In general, the more base pairs that are affected by a mutation, the larger the effect of the mutation, and the larger the mutation’s probability of being deleterious.