Question

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

Answer 1

In the process of meiosis, alleles separate and are added to the gametes in an independent manner. While each gamete (egg or sperm cell) therefore contains one allele for each gene, it's impossible to know which allele, because alleles segregate in a random manner. However, it's possible to calculate probabilities that the offspring will have a given allele using Punnett squares.

Step-by-step explanation:

Answer 2

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

Step-by-step explanation: