Mutations are generally .......

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(B) Mutations are changes in the $DNA$ sequence of an organism. Most mutations that occur in nature are $recessive$ because they often result in a los

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Recessive

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(B) Mutations are changes in the $DNA$ sequence of an organism. Most mutations that occur in nature are $recessive$ because they often result in a loss-of-function or a non-functional protein. Since most organisms are diploid, a single functional copy of a gene (the wild-type allele) is usually sufficient to produce the required phenotype, masking the effect of the mutated recessive allele. Therefore, mutations are generally recessive.

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Assertion: An organism with lethal mutation may not even develop beyond the zygote.
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