Question

its important to know the base pairing rules for dna before proceeding. which of the following are valid pairings for dna? select all that apply a - a a - t a - c a - g t - t t - c t - g c - c c g

Explanation:

In DNA base pairing, adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). So we check each option:

• A - A: Not valid (A pairs with T).
• A - T: Valid (A - T pairing).
• A - C: Not valid (A pairs with T).
• A - G: Not valid (A pairs with T).
• T - T: Not valid (T pairs with A).
• T - C: Not valid (T pairs with A).
• T - G: Not valid (T pairs with A).
• C - C: Not valid (C pairs with G).
• C - G: Valid (C - G pairing).

Answer:

A-T, C-G