Question

a basic principle of heredity states that the alleles for each gene from a parent cell separate during the formation of sex - cells. which image correctly demonstrates this principle? parent cell aa sex cells a a parent cell aa sex cells aa aa parent cell aa sex cells a a parent cell aa sex cells aa

Explanation:

The principle described is the law of segregation in genetics. It states that during the formation of sex - cells (gametes), the alleles for each gene separate from each other so that each gamete carries only one allele for each gene. In the given options, the first one where a parent cell with genotype Aa produces sex - cells with genotypes A and a respectively correctly demonstrates this principle. The other options show incorrect segregation patterns.

Answer:

The first option where the parent cell Aa produces sex cells A and a.