Select the wrong statement

Options

A. The human genome contains 3164.7 million nucleotide bases
B. less than 10% of the genome codes for protein
C. Repeated sequences make up very large portion of the human genome
D. Chromosome 1 has most genes (2968) and Y has the fewest (231)

Answer

To solve the question of selecting the wrong statement regarding the human genome, we will analyze each option one by one.

### Step-by-Step Solution:

1. **Understanding the Human Genome**:
- The human genome comprises all the genetic material in an organism, including both coding (genes) and non-coding regions.

2. **Analyzing the First Statement**:
- **Statement**: "The human genome contains 3164.7 million nucleotide bases."
- **Analysis**: This statement is correct. The human genome is indeed composed of approximately 3.2 billion (or 3164.7 million) nucleotide bases.

3. **Analyzing the Second Statement**:
- **Statement**: "Less than 10% of the genome codes for protein."
- **Analysis**: This statement is incorrect. In reality, only about 2% of the human genome codes for proteins, which is significantly less than 10%. Hence, this is the wrong statement.

4. **Analyzing the Third Statement**:
- **Statement**: "Repeated sequences make up a very large proportion of the human genome."
- **Analysis**: This statement is correct. Repeated sequences, including transposable elements and other repetitive DNA, constitute a large portion of the human genome.

5. **Analyzing the Fourth Statement**:
- **Statement**: "Chromosome number 1 has the most genes, and Y has the fewest genes."
- **Analysis**: This statement is also correct. Chromosome 1 contains the most genes (approximately 2,968), while the Y chromosome has the fewest genes (approximately 231).

### Conclusion:
After analyzing all the statements, the second statement, "Less than 10% of the genome codes for protein," is the incorrect one.

### Final Answer:
The wrong statement is: **"Less than 10% of the genome codes for protein."**

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