In a nucleus, the number of RNA nucleoside triphosphates is 10 times more than the number of DNA nucleoside triphosphates, still only DNA nucleotides are added during the DNA replication, and not the RNA nucleotides. Why?

Explanation

To answer the question regarding why only DNA nucleotides are added during DNA replication despite the abundance of RNA nucleoside triphosphates, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Understanding DNA Replication**:
- DNA replication is the process by which a cell duplicates its DNA before cell division. This process requires specific enzymes and substrates.

2. **Role of DNA Polymerase**:
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