Question

Haploids are more suitable for mutation studies than the diploids. This is because:

• A. haploids are more abundant in nature than diploids
• B. all mutations, whether dominant or recessive, are expressed in haploids
• C. haploids are reproductively more stable than diploids
• D. mutagens penetrate in haploids more effectively than in diploids

Answer 1

The correct option is B

all mutations, whether dominant or recessive, are expressed in haploids

Diploid cells have 2 sets of homologous chromosomes. However, in diploid cells, the mutation studies are difficult since there exists the possibility that gene under study could be recessive and may not be expressed.
In haploid cells, the mutation in a gene would be expressed irrespective of whether the gene is recessive or dominant.