Human genome is said to have approximately
(a) `3 xx 10 ^(9)` bp
(b) `3 xx 10^(6)` bp
(c) `6.6 xx 10^(6)` bp
(d) `3.3 xx 10^(6)` bp

Options

A. `3 xx 10 ^(9)` bp
B. `3 xx 10^(6)` bp
C. `6.6 xx 10^(6)` bp
D. `3.3 xx 10^(6)` bp

Answer

To solve the question regarding the approximate number of base pairs in the human genome, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the approximate number of base pairs in the human genome. We need to evaluate the given options to find the correct one.

2. **Reviewing the Options**:
- Option (a): `3 x 10^(9)` bp
- Option (b): `3 x 10^(6)` bp
- Option (c): `6.6 x 10^(6)` bp
- Option (d): `3.3 x 10^(6)` bp

3. **Recalling Human Genome Facts**: The human genome is known to contain approximately 3 billion base pairs. This is a well-established fact in genetics.

4. **Comparing Options with Known Facts**:
- Option (a) `3 x 10^(9)` bp corresponds to 3 billion base pairs, which aligns with the known information about the human genome.
- The other options (b, c, and d) represent much smaller numbers (in the millions), which do not match the known size of the human genome.

5. **Conclusion**: Based on the information and comparison, we can conclude that the correct answer is option (a) `3 x 10^(9)` bp.

### Final Answer:
The human genome is said to have approximately **(a) `3 x 10^(9)` bp**.

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