Question

The gene which can decide the appearance of an organism only in the presence of another identical gene is called as

• A. Recessive gene
• B. Dominant gene
• C. Moderate gene
• D. All of the above

Answer 1

The correct option is A Recessive gene

The gene which can decide the appearance of an organism only in the presence of another identical gene is called as recessive gene. A recessive gene is a gene that is not dominant but only manifests when a gene of both parents is the same, i.e., homozygous (where both genes are the same as in two genes for blue eyes). For example, in the pea plant, dwarfness is recessive and tallness is dominant.