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Select all the statements that apply to mutations:
Select all correct options
Mutations are random
Mutations are a source of genetic variation
Mutations are always bad
Mutations are changes in DNA sequences
ALL mutations are passed down to the offspring

1 answer

The following statements are correct regarding mutations:

  1. Mutations are random - Mutations occur spontaneously and can happen due to various factors, often at random.

  2. Mutations are a source of genetic variation - Mutations provide new alleles and thus contribute to the genetic diversity within a population.

  3. Mutations are changes in DNA sequences - By definition, mutations refer to alterations in the DNA sequence.

The incorrect statements are:

  • Mutations are always bad - This is not true; some mutations can be beneficial, neutral, or harmful depending on the context.

  • ALL mutations are passed down to the offspring - This is also incorrect; only mutations that occur in germ cells (sperm and eggs) can be inherited by the next generation, while mutations in somatic (non-reproductive) cells are not passed on.

So the correct options are:

  • Mutations are random
  • Mutations are a source of genetic variation
  • Mutations are changes in DNA sequences