AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

STRUCTURE OF NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which contains adenine?
A
DNA
B
RNA
C
Both
Explanation: 

Detailed explanation-1: -DNA contains adenine, guanine, cytosine and thymine, whereas, RNA contains adenine, guanine, cytosine and uracil.

Detailed explanation-2: -DNA and RNA molecules both contain four nitrogenous bases. Three of these (adenine, cytosine, and guanine) are found in both types of nucleic acid.

Detailed explanation-3: -Final answer: Purines found both in DNA and RNA are adenine and guanine.

Detailed explanation-4: -Under normal circumstances, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together. The binding of these base pairs forms the structure of DNA .

Detailed explanation-5: -They also play roles in the metabolism, enzyme activities, and cell signalling processes. A nucleotide is composed of three parts: a 5-carbon sugar, a phosphate group, and a nitrogenous base. The four nitrogenous bases found in DNA are adenine, thymine, guanine, and cytosine. Instead of thymine, RNA contains uracil.

There is 1 question to complete.