Assertion:Human and great apes have a common ancestry.
Reason:Man and chimpanzee have similar banding pattern of chromosomes number 3 and 6

Options

A. If both A and R are true and R is the correct explanation of A
B. If both A and R are true but R is not the correct explanation of A
C. If A is true and R is false
D. If both A and R are false

Answer

To solve the assertion and reason question, we will analyze both statements and determine their validity and relationship.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Humans and great apes have a common ancestry."
- This statement is scientifically supported by evolutionary biology, which indicates that humans and great apes (like chimpanzees and gorillas) share a common ancestor from which they both evolved. This common ancestry is a fundamental concept in the study of evolution.

2. **Understanding the Reason**:
- The reason provided states that "Man and chimpanzee have similar banding patterns of chromosomes number 3 and 6."
- Chromosomal banding patterns are used in genetics to identify similarities and differences in chromosome structure. Studies have shown that humans and chimpanzees have very similar chromosomal structures, particularly in certain chromosomes, which supports the idea of a close evolutionary relationship.

3. **Evaluating the Relationship**:
- Both the assertion and the reason are true statements.
- Additionally, the reason provides a genetic basis for the assertion, explaining how the similarity in chromosome banding patterns supports the idea of a common ancestry between humans and great apes.

4. **Conclusion**:
- Since both the assertion and the reason are true, and the reason correctly explains the assertion, we conclude that the answer is: Both A and R are true, and R is the correct explanation of A.

### Final Answer:
Both A and R are true, and R is the correct explanation of A.

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