Question

Same gene loci on two homologous chromosomes produce different phenotypes. They bear

• A. Homozygous alleles
• B. Heterozygous alleles
• C. Two different genes
• D. Pleiotropic genes

Answer 1

Answer: (D)

Pleiotropic genes

The ability of a gene to have multiple phenotypic effects is known as pleiotropy and the genes are called Pleiotropic genes. These genes influence the number of characters simultaneously. These genes are present on same loci on two homologous chromosomes and produce different phenotypes.

So, the correct option is ‘Pleiotropic genes’.