Answer:
C. Sugar-phosphate groups
Answer:
Genetic Engineering is on purpose.
Explanation:
Genetic engineering could range from selective breeding to adding/removing DNA and RNA. Natural reproduction occurs with the sole purpose of creating successful offspring. The offspring could he tainted if the male and female are related leaving it to not have the DNA or RNA necessary to lessen the likelihood of dysfunctional genetics.
<span>It is usually the + strand and the - strand. It can be quite a bit more complicated.</span>
