Digital ACT Science Practice Question #1545
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
G-C has 3 hydrogen bonds -> higher melting point.
G-C base pairs have 3 hydrogen bonds compared to 2 in A-T pairs, requiring more thermal energy to denature the double helix....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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