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PCAT Biological Processes – Watson & Crick DNA Model
- by
- Jan 03, 2018
- PCAT Question of the Day
In the Watson and Crick model of DNA, Adenine pairs with:
A) Guanine
B) Uracil
C) Cytosine
D) Thymine
Click for Explanation
In the Watson and Crick model of DNA, Adenine pairs with Thymine. Cytosine pairs with Guanine, and Uracil is found in RNA rather than DNA. Adenine does pair with Uracil, but the question specifies DNA rather than RNA.
A) Guanine, incorrect, Guanine pairs with Cytosine.
B) Uracil, incorrect, Adenine pairs with Uracil in RNA rather than DNA.
C) Cytosine, incorrect, Cytosine pairs with Guanine.
D) Thymine, correct.
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