Question

Complete the paragraph to summarize how an RNA molecule is created.
First, a section of the DNA molecule is
• Then, RNA nucleotides are
brought in to pair with the DNA nucleotides. According to the rules of complementary
base pairing,
• pairs with thymine, and guanine pairs with
. But
RNA contains the nitrogenous base uracil instead of
-. Uracil pairs with

Answer 1

First, a section of the DNA molecule is unwound and the two strands separate. Then, RNA nucleotides are brought in to pair with the DNA nucleotides. According to the rules of complementary base pairing, adenine pairs with thymine, and guanine pairs with cytosine. But RNA contains the nitrogenous base uracil instead of thymine. Uracil pairs with adenine.