Biology

Alleles are indeed different forms of a gene.

For example, in the case of pea plants studied by Mendel, the gene for seed color has two alleles - one for yellow seeds and one for green seeds.

A plant inherits two alleles (one from each parent) for a particular gene.

The combination of these alleles then determines the plant's phenotype.

If the allele for yellow seeds is dominant and the plant has at least one copy of this dominant allele, it will likely have yellow seeds, which is its observable phenotype.

Option A is incorrect because alleles can be different; they can be dominant or recessive, and not all alleles are identical. They often lead to different expressions ...