Assertion; Amitosis occurs with spindle formation.
Reason;Amitosis occurs during the formation of gametes in diploid organisms.

Options

A. If both A and R are correct and R is correct explanation of A
B. If both A and R are correct but R is not correct explanation of A
C. If A is correct, R is wrong
D. If both A and R are wrong.

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that "Amitosis occurs with spindle formation." To evaluate this, we need to understand what amitosis is.

2. **Definition of Amitosis**: Amitosis is a type of cell division characterized by the simple cleavage of the nucleus and division of the cytoplasm without the formation of a spindle apparatus. This means that during amitosis, chromosomes do not condense and align as they do in mitosis or meiosis.

3. **Evaluating the Assertion**: Since amitosis does not involve spindle formation, the assertion is incorrect. Amitosis occurs without spindle formation.

4. **Understanding the Reason**: The reason states that "Amitosis occurs during the formation of gametes in diploid organisms." We need to analyze whether this statement is true.

5. **Amitosis and Gamete Formation**: Amitosis is not the process that occurs during gamete formation. Instead, gametes are formed through meiosis, which is a specialized type of cell division that reduces the chromosome number by half and involves two rounds of division.

6. **Evaluating the Reason**: Since amitosis does not occur during the formation of gametes in diploid organisms (it occurs in polyploid organisms), the reason is also incorrect.

7. **Conclusion**: Both the assertion and the reason are incorrect. Therefore, the correct answer is that both A and R are wrong.

### Final Answer:
Both A and R are wrong.

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