Assertion : Behaviour of chromosome is parallel to gene
Reason Genes are loacated on the chromosome

Options

A. Assertion and reason both are correct statements and reason is the correct explanation of the assertion.
B. Assertion and reason both are correct statements but reason is not the correct explanation of the assertion.
C. Assertion is true, but reason is false statement.
D. Assertion is false, but reason is true statement.

Answer

To solve the question, we need to analyze both the assertion and the reason provided.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that the behavior of chromosomes is parallel to that of genes. This implies that the way chromosomes behave during processes like cell division (mitosis and meiosis) is similar to how genes are expressed and inherited.

2. **Understanding the Reason**:
- The reason given is that genes are located on chromosomes. This is a fundamental concept in genetics; genes are segments of DNA that reside on chromosomes. Each chromosome contains many genes, and the arrangement of these genes is crucial for inheritance.

3. **Analyzing the Relationship**:
- Since genes are located on chromosomes, the behavior of chromosomes during cell division directly affects the distribution of genes to daughter cells. Therefore, the assertion that the behavior of chromosomes is parallel to that of genes is supported by the reason provided.

4. **Conclusion**:
- Both the assertion and the reason are correct. Furthermore, the reason serves as a correct explanation for the assertion. This means that the behavior of chromosomes (assertion) can be understood through the fact that genes are located on them (reason).

### Final Answer:
Both the assertion and the reason are correct, and the reason is the correct explanation of the assertion.