<span>a. chromosomes hope that helped I'm doing the same quiz.</span>
If we all had the same DNA that would mean we would all be the same, no differences <span />
When alleles are recombined during sexual reproduction, they can produce dramatically different phenotypes. Thus, sexual reproduction is a major source of variation within many population. Asexual<span> production is when there is one parent that produces offspring that are identical to the parent. Basically a copy of the parents DNA.
Your answer in short is B
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A pair of genes that control a trait is referred to as an allele.
