Prepare for the Clinical Genetics Test. Utilize flashcards and multiple-choice questions, each with hints and explanations. Achieve success on your exam!

Multiple Choice

Which base pairs with adenine in DNA?

In DNA, bases pair through a specific rule: adenine pairs with thymine, and cytosine pairs with guanine. Adenine forms two hydrogen bonds with thymine, which fits the double-helix structure and the purine-pyrimidine pairing pattern. Uracil is used in RNA instead of thymine and pairs with adenine there, not in DNA. So, the base that pairs with adenine in DNA is thymine.

In DNA, bases pair through a specific rule: adenine pairs with thymine, and cytosine pairs with guanine. Adenine forms two hydrogen bonds with thymine, which fits the double-helix structure and the purine-pyrimidine pairing pattern. Uracil is used in RNA instead of thymine and pairs with adenine there, not in DNA. So, the base that pairs with adenine in DNA is thymine.