Question

Define dominant and recessive traits. Give an example for dominant and recessive traits in a pea plant. [3 mark]

Answer 1

Dominant Traits:

• It is a character expressed by a dominant gene. Dominant gene is the one which expresses itself in the presence of its contrasting which is considered to be a suppressed gene. [1 mark]

Recessive Traits:

• It is a character expressed by a recessive gene. Recessive gene is a gene whose expression is suppressed by a dominant gene. [1 mark]

Examples: In pea plant, tallness is a dominant trait and dwarfness is a recessive trait. [1 mark]