Explanation:
does this come for a story or is just a question?
Is this a multiple choice question or...??
If not, I'd say, that its simple as scientists can easily decipher which variable caused the situations result. And thats because you may have one manipulated variable to be able to know the responding variable.
<span>The closet hominin to a current day human is: </span>Homo Sapiens.
Answer:
DNA polymerase
Explanation:
DNA polymerase is the enzyme that matches and lays down nucleotides to build the daughter DNA strand along each parent DNA strand.
Answer:
Mutation causes brand new alleles the others just modify the rates at which preexisting alleles appear in the population.