Question

How many alleles does a trait have?

Answer 1

Alleles:

1. Alleles contribute to the organism's phenotype or physical appearance.
2. Alleles can be recessive or dominant.
3. Every trait has two alleles in each person.
4. Humans are diploid because they have two alleles at each genetic locus.
5. Although a gene may have multiple alleles, a person can only carry two of them.
6. This is due to the fact that chromosomes exist in pairs.
7. Blood type is an example of a human trait controlled by a gene with multiple alleles.