Question

Nitrogenous bases in DNA and RNA?
A) Adenine B) Cytosine C) Guanine D) All the above

Answer 1

The correct option is D) All of the above

Explanation:

• The DNA and RNA both are made up of nitrogenous bases.

• The nitrogenous bases which are common in both DNA and RNA are adenine, cytosine and guanine.

• The RNA contains Uracil as the fourth nitrogenous base which is absent in the DNA.
• The DNA contains Thymine as the fourth nitrogenous base.

• The DNA is double stranded. On the other hand, the RNA is single stranded.

Answer 2

Answer:

D) All the above

Explanation:

Dna and Rna contain Nitrogen bases which form pairs- creating the double helix structure.

It is factual that these bases are nitrogen compounds-Dna contains A,C,G,T

while Rna contains A,C,G,U

Hence, the nitrogen bases in both are A,C,G , which gives us the answer

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