Blueprint MCAT Formerly Next Step
Return to Blog Homepage

MCAT Biology Question — Watson & Crick DNA Model

In the Watson and Crick model of DNA, Adenine pairs with:


a) Guanine


b) Uracil


c) Cytosine


d) Thymine




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.

Want more MCAT practice?

We’ve got options for every schedule and learning style!

From the best online MCAT course created by top instructors with 524+ MCAT scores to the most representative full-length practice exams and private tutoring, we can custom tailor your MCAT prep to your goals!

Not sure which option is right for you? Schedule a free MCAT consultation with an MCAT expert using the form below. No obligation, just expert advice.

Submit a Comment

Submit a Comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.