Answer:
The correct answer is B. the two strands of DNA must separate.
Explanation:
DNA is a double-stranded structure. The two strands are joined together by the formation of hydrogen bonds between complementary nucleotides. So before the replication takes place these two strands must be separated.
The separation of DNA strand is accomplished by the action of a helicase enzyme which breaks the hydrogen bond between complementary nucleotides and separated the two DNA strands.
After separation, the DNA polymerase binds to separated DNA and replicating the DNA. So the right answer is B.
Answer:
Insulin
Explanation:
Not sure how to explain this further, as the function of the enzyme is explained fully in the problem lol. PM me if you want more details though!
Answer:
How traits/characters were passed down and inherited from parents to offspring.
Single or multi-celled structure, membrane-bound organelles, cell(s) larger than prokaryotes
