Which statement is not correct :-

Options

A. DNA polymarase is the main enzyme for RNA synthesis
B. Primer is formed by primase enzyme
C. In human, less than 2% of genome codes for protein
D. AUG codes for methionine amino acid

Answer

To determine which statement is not correct, we will analyze each of the provided statements one by one:

1. **DNA polymerase is the main enzyme for RNA synthesis.**
- This statement is incorrect. The main enzyme responsible for RNA synthesis is RNA polymerase, not DNA polymerase. DNA polymerase is primarily involved in DNA replication, not RNA synthesis.

2. **Primer is formed by primase enzyme.**
- This statement is correct. Primase is an enzyme that synthesizes a short RNA primer, which is necessary for DNA polymerase to initiate DNA synthesis.

3. **In the human genome, less than 2% of the genome codes for protein.**
- This statement is also correct. According to the findings of the Human Genome Project, it is estimated that only about 1-2% of the human genome is made up of coding sequences that actually code for proteins.

4. **AUG codes for methionine amino acid.**
- This statement is correct as well. AUG is known as the start codon and it codes for the amino acid methionine. It also serves as the initiator codon for protein synthesis.

Based on the analysis, the statement that is not correct is:
**"DNA polymerase is the main enzyme for RNA synthesis."**

### Step-by-Step Solution:
1. Identify the statements provided in the question.
2. Analyze each statement for its accuracy.
3. Confirm that RNA polymerase is the enzyme for RNA synthesis, not DNA polymerase.
4. Verify that primase forms the RNA primer.
5. Check the percentage of the human genome that codes for proteins.
6. Confirm that AUG codes for methionine.
7. Conclude which statement is incorrect.