When scientists make an animal superior by view of genotype, introducing some foreign genes in it, is called

Options

A. immunization
B. genetic engineering
C. tissue culture
D. biotechnology.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about a scientific process where an animal's genotype is improved by introducing foreign genes.

2. **Identifying the Process**: The process of altering the genetic material of an organism is known as genetic engineering. This involves the manipulation of an organism's genome to enhance certain traits.

3. **Defining Key Terms**:
- **Genotype**: The genetic constitution of an organism.
- **Foreign Genes**: Genes that are not originally present in the organism, often referred to as transgenes when introduced into a host organism.

4. **Evaluating Options**:
- **Immunization**: This process involves introducing antigens to stimulate an immune response, unrelated to genetic modification.
- **Genetic Engineering**: This is the correct term for the process of altering an organism's genome by introducing foreign genes.
- **Tissue Culture**: A technique primarily used in plant breeding, not applicable to the genetic modification of animals.
- **Biotechnology**: A broad field that encompasses various techniques involving living organisms, but does not specifically refer to the process of genetic modification.

5. **Conclusion**: The most appropriate term for the process described in the question is **Genetic Engineering**.

**Final Answer**: Genetic Engineering

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