Question

Recessive mutations are expressed in

• A. Homozygous condition
• B. Heterozygous condition
• C. Next generation
• D. Same generation

Answer 1

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'.