When a cross is made between offspring and its parents , it is known as

Options

A. Monohybrid cross
B. Dihybrid cross
C. Back cross
D. Reciprocal cross

Answer

To solve the question, "When a cross is made between offspring and its parents, it is known as," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Terms**:
- We need to identify the types of crosses mentioned in the options: monohybrid cross, dihybrid cross, back cross, and reciprocal cross.

2. **Defining the Crosses**:
- **Monohybrid Cross**: This involves a cross between two individuals that differ in one trait (e.g., tall vs. dwarf plants).
- **Dihybrid Cross**: This involves a cross between two individuals that differ in two traits (e.g., seed shape and seed color).
- **Back Cross**: This is a cross between an offspring (F1 generation) and one of its parents (P generation). This is what we are looking for in this question.
- **Reciprocal Cross**: This involves switching the male and female parents in a cross to see if the results differ.

3. **Identifying the Correct Answer**:
- Since the question specifically asks about a cross between offspring and its parents, the correct term is **Back Cross**.

4. **Conclusion**:
- Therefore, the answer to the question is **C, Back Cross**.