Question

A DNA molecule with the base sequence A-G-C-T-C-A was used as a template for the synthesis of a mRNA molecule. Which base sequence correctly represents the corresponding portion of this RNA molecule? a. U-C-G-A-G-U b. T-C-A-G-C-A c. A-G-C-U-C-A d. A-T-G-A-C-T

Answer 1

The base sequence of the corresponding portion of the RNA molecule would be U-C-G-A-G-U.

Step-by-step explanation:

The base sequence of the RNA molecule that corresponds to the given DNA template sequence A-G-C-T-C-A can be determined by following the base pairing rules between DNA and RNA. In RNA, adenine (A) pairs with uracil (U) instead of thymine (T). Therefore, the correct base sequence for the corresponding portion of the RNA molecule would be:

a. U-C-G-A-G-U

This is because A in the template DNA pairs with U in the RNA, G pairs with C, C with G, T with A (which becomes U in RNA), and A with U.