Number of pyrimidine bases present in both in DNA and RNA are

Explanation

To determine the number of pyrimidine bases present in both DNA and RNA, we can follow these steps:

### Step 1: Identify Pyrimidine Bases in DNA
In DNA, the pyrimidine bases are:
- Cytosine (C)
- Thymine (T)

### Step 2: Identify Pyrimidine Bases in RNA
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