HEREDITY
MUTATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A mutation is considered neutral if it decreases the chances that an organisms will survive to reproduce.
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A mutation is considered beneficial if it changes the organism’s phenotype.
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A mutation is considered harmful if it results in a change that can be passed on to an organism’s offspring.
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A mutation is considered beneficial if it improves the chances for an organism’s survival and reproduction.
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Detailed explanation-1: -Answer and Explanation: The correct answer to this question is B. They always cause a change to an organism’s genotype. Regardless of the cause of the change, a DNA sequence is always altered when it mutates.
Detailed explanation-2: -A mutation is a change in DNA, the hereditary material of life. An organism’s DNA affects how it looks, how it behaves, and its physiology. So a change in an organism’s DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation.
Detailed explanation-3: -Mutations in somatic cells are called somatic mutations. Because they do not occur in cells that give rise to gametes, the mutation is not passed along to the next generation by sexual means.