Animal that have their DNA manipulated to possess and express an extra (foreign) gene are known as-----

Options

A. Foreign animals
B. Superior animals
C. Transgenic animals
D. Elevated animals

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks about animals whose DNA has been manipulated to include and express an extra gene, which is foreign to their original genome.

2. **Defining Key Terms:**
- **DNA Manipulation:** This refers to the process of altering the genetic material of an organism. This is commonly done through genetic engineering techniques.
- **Foreign Gene:** A gene that originates from a different species or organism and is introduced into the genome of another organism.

3. **Identifying the Type of Animal:**
Animals that have undergone this process are specifically referred to as "transgenic animals." This term is used to describe organisms that have had foreign DNA inserted into their genome.

4. **Understanding the Purpose of Creating Transgenic Animals:**
Transgenic animals are created for various purposes, including:
- Research and study models in genetics and biology.
- Enhancing agricultural traits, such as increased milk production in cattle.
- Producing pharmaceuticals or other beneficial products for human welfare.

5. **Conclusion:**
Based on the understanding of the terms and the purpose of these animals, the answer to the question is that animals that have their DNA manipulated to possess and express an extra (foreign) gene are known as **transgenic animals**.

**Final Answer:**
Transgenic animals.

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