Question

dna polymerase
another enzyme, and arguably the most important, is dna polymerase. this enzyme’s function in a
cell is to add nucleotides to the growing strand of dna. dna polymerase reads the bases on the
original (template) strand and adds the complementary bases to the growing strand of dna. another
type of dna polymerase proofreads dna. it corrects any incorrectly matched nucleotides by
removing the incorrect one and replacing it with the correct one.

1. □ is responsible for adding

new nucleotides to the dna strand being created.

1. dna polymerase knows what nucleotide to add

next because it reads the □ strand.

1. adenine pairs with □

Explanation:

Question 17

The text states that DNA polymerase's function in a cell is to add nucleotides to the growing strand of DNA. So the enzyme responsible for adding new nucleotides to the DNA strand being created is DNA polymerase.

According to the text, DNA polymerase reads the bases on the original (template) strand and adds the complementary bases to the growing strand of DNA. So it reads the template strand to know what nucleotide to add next.

In DNA base pairing, adenine (A) pairs with thymine (T) (in DNA; in RNA it pairs with uracil, but this context is DNA). This is a fundamental rule of DNA base pairing.

Answer:

DNA polymerase

Question 18