What are the names of the four nitrogenous bases that can be a part of a DNA nucleotide? (Select all that apply.) Question 3 options: adenine thymine cytosine uracil guanine

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Biology

Xiomara Hancock

6 April, 07:07

What are the names of the four nitrogenous bases that can be a part of a DNA nucleotide? (Select all that apply.) Question 3 options: adenine thymine cytosine uracil guanine

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Answers (1)

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Danny Yoder · Answer 1

Adenine, Thymine, Cytosine and Guanine are the four nitrogenous bases that can be a part of a DNA nucleotide.

Explanation:

Considering the two basic types of nitrogenous bases, pyrimidines and purines; there are five nitrogenous bases found in nucleotides. Adenine, Thymine, Cytosine, Guanine and Uracil. Of these, the presence of some bases are common in DNA and RNA and some have their unique presence in DNA or RNA.

Deoxyribonucleic acid (DNA) is a double helical structure made up of nucleotides, the chemical building blocks. Each nucleotide is a combination of a phosphate, sugar and a chemical base. Ribonucleic acid (RNA) is similar to DNA but is a single stranded molecule. Adenine, Cytosine and Guanine are present in both RNA and DNA. Thymine is found only in DNA. RNA, differing from thymine, has Uracil in it.

Thus DNA nucleotides have four nitrogenous bases; Adenine, Thymine, Cytosine and Guanine.