Select the correct statement regarding the human genome project

Options

A. Y-chromosome has maximum number of genes
B. There are 3164.7 million genes in human body
C. The average gene consists of 3000 bases.
D. Repeated sequence make up very small portion of human genome.

Explanation

To solve the question regarding the correct statement about the Human Genome Project, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Evaluate the First Statement**: "Y chromosome has maximum number of genes."
- The Y chromosome actually has the **minimum number of genes** in the human genome, with only about **55 genes**. In contrast, chromosome 1 has the maximum number of genes. Therefore, this statement is **incorrect**.

**Hint**: Remember that the Y chromosome is known for having fewer genes compared to other chromosomes.

2. **Evaluate the Second Statement**: "There are 3164.7 million genes in the human body."
- The total number of genes in the human body is approximately **30,000**, not 3164.7 million. The figure 3.164 billion refers to the number of **base pairs** in the human genome, not genes. Thus, this statement is also **incorrect**.

**Hint**: Distinguish between the number of genes and the total base pairs in the genome.

3. **Evaluate the Third Statement**: "Average gene consists of 3000 bases."
- This statement is **correct**. On average, a human gene is composed of about **3000 base pairs**. Although there is variation in gene size, this is a reasonable average.

**Hint**: Consider the average size of genes when thinking about their structure.

4. **Evaluate the Fourth Statement**: "Repeated sequences make up a very small portion of the human genome."
- This statement is **incorrect**. In fact, repetitive sequences make up a **significant portion** of the human genome. They are abundant and can span large regions within the genome.

**Hint**: Remember that repetitive sequences are common and can occupy large areas of the genome.

### Conclusion:
The only correct statement regarding the Human Genome Project is: **"Average gene consists of 3000 bases."**