Question

question 4
in the introduction to the lab it was recommended that you use cold liquids because it slows down enzymatic reactions and protected the dna from enzymes that can destroy it. why would a cell contain enzymes that destroy dna outside the nucleus of a cell?
a to make it larger
b to destroy viral dna that is inserted into the cell
c to protect the dna from ribosomes
d to slow the production of atp

Explanation:

Cells contain enzymes that destroy DNA outside the nucleus as a defense mechanism. Viruses can insert their DNA into a cell. These enzymes help to break down such foreign viral DNA, protecting the cell's own genetic material.

Answer:

B. to destroy viral DNA that is inserted into the cell