Which of the following nucleotide chains could be part of a molecule of RNA?

A. A-T-G-C-C-A
B. A-A-T-A-A-A
C. G-C-C-T-T-G
D. A-U-G-C-C-A



Answer :

Final answer:

The correct nucleotide chain for RNA is A-U-G-C-C-A.


Explanation:

The correct nucleotide chain that could be part of a molecule of RNA is: D. A-U-G-C-C-A.

Why this is the correct choice:

  • RNA uses uracil (U) instead of thymine (T), making option D the only one with uracil in the sequence.
  • Adenine (A) pairs with uracil (U) in RNA, and guanine (G) pairs with cytosine (C).
  • Therefore, the chain A-U-G-C-C-A could exist in RNA as it follows the base-pairing rules for RNA.

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