PATHOLOGY MCQ
GENETICS AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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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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In a given population, individuals that possess this mutation have a greater rate of reproduction.
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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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The frequency of the mutation goes up and down with no observable effect on the health of a population.
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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: -What is a neutral mutation? Neutral mutations are the alterations in the DNA that are non-detrimental and non-beneficial for the survival and reproduction of the organism. Neutral mutations do not result in any phenotypic changes also.
Detailed explanation-3: -A silent mutation of a DNA sequence is more likely to occur when a change in the DNA sequence inside a protein-coding region of a gene has no effect on the amino acid sequence that makes up the protein.
Detailed explanation-4: -Polyploidy in plants is an example of neutral mutation.