Why is it possible to predict which of his or her two alleles each parent contributes for a given gene?

Why is it possible to predict which of his or her two alleles each parent contributes for a given gene?

Because the dominant gene from one of the parents would override the recessive gene and this would reflect from the phenotypic characteristics of the offspring

Explanation:

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).