Answer:
Restriction enzymes are used to cut DNA sequences at specific areas. They have a nucleotide code on them. So when this restriction enzyme finds that code in your DNA it cuts it there.
Explanation:
Science
The answer i would pick is <span>A. the presence of glaciers thats the correct answer
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Answer:
#Genetic variations
#If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation
Explanation:
#That is due to natural selection.