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Question

Recessive mutations are expressed in

A
Homozygous condition
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B
Heterozygous condition
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C
Next generation
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D
Same generation
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Solution

The correct option is A Homozygous condition
  • For a recessive mutation to give rise to a mutant phenotype in a diploid organism, both alleles must carry the mutation.
  • However, one copy of a dominant mutant allele leads to a mutant phenotype.
  • Recessive mutations result in a loss of function, whereas dominant mutations often, but not always, result in a gain of function.
So, the correct option is 'Homozygous condition'.

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