GENERAL KNOWLEDGE

Detailed explanation-1: -Answer: Option A Solution: Haploids are more suitable for mutation studies than the diploids.

Detailed explanation-2: -Abstract. Haploidy is a useful feature for the study of gene function because disruption of one allele in haploid cells, which contain only a single set of chromosomes, can cause loss-of-function phenotypes.

Detailed explanation-3: -In case of diploid plants, a recessive mutation of a dominant gene will be covered by a corresponding dominant allele and the mutation will not be observed until segregation. So haploid plants are preferred over diploids for mutation study because of their clear/obvious expression.