The purines in DNA are

Question

The purines in DNA are

A. thymine and cytosine
B. thymine and guanine
C. adenine and guanine
D. adenine and cytosine

Answer 1

Since this is not my area of expertise, I searched Google under the key words "purines in DNA" to get these possible sources:

https://www.google.com/search?client=safari&rls=en&q=purines+in+DNA&ie=UTF-8&oe=UTF-8&gws_rd=ssl

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

http://www.hackcollege.com/blog/2011/11/23/infographic-get-more-out-of-google.html

Answer 2

The purines in DNA are adenine (A) and guanine (G). To find the answer to this question, one can use prior knowledge or consult a reliable source of information such as a biology textbook or reputable website. DNA is composed of four nitrogenous bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Adenine and guanine are classified as purines, while cytosine and thymine are classified as pyrimidines. Therefore, the correct answer is option C, adenine and guanine.