Answer:
A Gene has alleles for its representation of a trait.
Step-by-step explanation:
A gene represents a trait. A gene has alleles. Like in blood group there are ABO genes for blood group.
AB are codominant and O is recessive.
If a gene is recessive and upon its coexistence with dominant gene , its trait will not be shown in an organism. If a gene is dominant, its trait will be shown in the organism.