Read Statements A - D , and select the correct option .
(A.) Mitosis produces two identical daughter cell.
(B.) Meiosis introduces variation due to gene exchange.
(C.) After anaphase, the chromosome has two chromatids.
(D.) Anaphase I is responsible for the reduction in chromosome number of gametes.
(a) All are correct
(b) A, B , C are correct
(c) A, B , D are correct
(d) C ,D are correct

Options

A. All are correct
B. A, B , C are correct
C. A, B , D are correct
D. C ,D are correct

Answer

To solve the question, we need to evaluate each statement (A-D) to determine which ones are correct.

### Step-by-Step Solution:

1. **Evaluate Statement A:**
- **Statement A:** "Mitosis produces two identical daughter cells."
- **Explanation:** Mitosis is a type of cell division that results in two daughter cells that are genetically identical to the parent cell. This is true because the genetic material is duplicated and equally divided.
- **Conclusion:** Statement A is correct.

2. **Evaluate Statement B:**
- **Statement B:** "Meiosis introduces variation due to gene exchange."
- **Explanation:** Meiosis is a specialized form of cell division that reduces the chromosome number by half and introduces genetic variation through processes such as crossing over and recombination. This statement is true.
- **Conclusion:** Statement B is correct.

3. **Evaluate Statement C:**
- **Statement C:** "After anaphase, the chromosome has two chromatids."
- **Explanation:** During anaphase of mitosis, sister chromatids are separated and pulled to opposite poles of the cell. After anaphase, each chromosome consists of only one chromatid. Therefore, this statement is incorrect.
- **Conclusion:** Statement C is incorrect.

4. **Evaluate Statement D:**
- **Statement D:** "Anaphase I is responsible for the reduction in chromosome number of gametes."
- **Explanation:** In meiosis, during Anaphase I, homologous chromosomes are separated, which reduces the chromosome number by half. This is indeed correct.
- **Conclusion:** Statement D is correct.

### Final Evaluation:
- Statements A, B, and D are correct.
- Statement C is incorrect.

### Correct Option:
- The correct option is (c) A, B, D are correct.