Main aim of human genome project is to

Options

A. Introduce new genes into human beings
B. Identify and sequence all the genes present in human DNA
C. Develop better techniques to compare two human DNAs
D. Remove disease causing genes from human DNA

Answer

### Step-by-Step Text Solution:

1. **Understanding the Human Genome Project (HGP)**:
The Human Genome Project is a scientific research initiative aimed at mapping and understanding all the genes of the human species.

2. **Main Aim of HGP**:
The primary objective of the Human Genome Project is to identify and sequence all the genes present in human DNA. This means determining the exact order of the nucleotides (the building blocks of DNA) that make up human genes.

3. **Components of DNA**:
DNA is composed of nucleotides, which consist of a nitrogenous base (either a purine or a pyrimidine), a sugar molecule (deoxyribose in the case of DNA), and a phosphate group. Understanding these components is crucial for sequencing the genome.

4. **Applications of HGP**:
While the main aim is to identify and sequence all human genes, the project also has several applications, such as:
- Identifying disease-causing genes.
- Developing better techniques for comparing human DNA.
- Potentially removing or altering disease-causing genes.

5. **Conclusion**:
The correct answer to the question about the main aim of the Human Genome Project is to "identify and sequence all the genes present in human DNA." The other options provided are applications or outcomes of the project, not its primary aim.