Question

what best describes the alleles in a zygote that is heterozygous? the alleles are the same. the alleles are purebred. the alleles are from one parent. the alleles are different.

Explanation:

In genetics, a heterozygous zygote has two different alleles for a particular gene. For example, if we consider a gene for flower color with alleles \( R \) (red) and \( r \) (white), a heterozygous zygote would have \( Rr \). A homozygous zygote has the same alleles (e.g., \( RR \) or \( rr \)). Purebred refers to homozygous organisms. Also, alleles in a zygote come from both parents (one from each).

Answer:

The alleles are different.