Sawaal
1
Q:

Which chemical is not found in DNA nucleotides?

A) Thymine B) Uracil
C) Adenine D) All of the above

Answer:   B) Uracil



Explanation:

A nucleotide is an organic molecule that is the building block of DNA and RNA. They also have functions related to cell signaling, metabolism, and enzyme reactions. A nucleotide is made up of three parts: a phosphate group, a 5-carbon sugar, and a nitrogenous base. The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine. RNA contains uracil, instead of thymine. 

 

A nucleotide within a chain makes up the genetic material of all known living things.

Subject: Biology
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