Question

2. A DNA molecule has the bases: A C G T T A. What set of bases will bond in a complementary way during replication?

3. Another molecule has the bases: A C G T T A. What mRNA strand will be made during transcription?

Answer 1

2. The base-pairing rule states that A can only pair with T and C with G.

So, T G C A A T

3. Messenger RNA is the complementary strand of the DNA with one exception: A pairs with U. Because RNA has a different sugar than DNA (ribose), thymine can no longer "Fit" with adenine and uracil is used instead. So, U G C A A U