In DNA and RNA, nitrogen atom is present in the ring system. Can Kjeldahl method be used for the estimation of nitrogen present in these. Give reasons.

Explanation

### Step-by-Step Solution

1. **Understanding the Presence of Nitrogen in DNA and RNA**:
- DNA and RNA contain nitrogen atoms that are part of heterocyclic rings. These rings are integral to the structure of nucleotides, which are the building blocks of DNA and RNA.

2. **Kjeldahl Method Overview**:
- The Kjeldahl method is a widely used technique for determining the nitrogen content in organic compounds. It involves converting nitrogen into ammonium sulfate (NH4)2SO4, which can then be quantified.

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