Q28-13E - Organic Chemistry (Mcmurry)

Question

Identify the following bases, and tell whether each is found in DNA, RNA, or both.

Step-by-Step Solution

Answer

The bases and its presence in DNA, RNA or both can be identified

(a) Guanine and it is found in both DNA and RNA.

(b) Uracil and it is found in RNA.

(c) Cytosine and it is found in both DNA and RNA.

Finding base and its presence for a given structure (a)

In diagram a, cytosine and guanine can be present in both RNA and DNA. Uracil can be seen only in RNA. Here, nitrogen is indicated by blue atoms, oxygen for red and carbon and grey for black and hydrogen atoms respectively. The base given is Guanine. It is found in both DNA and RNA.

Finding base and its presence for given structure (b)

In the diagram, cytosine and guanine can be present in both RNA and DNA. Uracil can be seen only in RNA. Here, nitrogen is indicated by blue atoms, oxygen for red and carbon and grey for black and hydrogen atoms respectively. The base given is Uracil. It is found in RNA.

Finding base and its presence for given structure (c)

In diagram a, cytosine and guanine can be present in both RNA and DNA. Uracil can be seen only in RNA. Here, nitrogen is indicated by blue atoms, oxygen for red and carbon and grey for black and hydrogen atoms respectively. The base given is Cytosine. It is found in both DNA and RNA.