A Mitosis produces two identical daughter cell.
B Meiosis introduces variation due to gene exchange or recombination.
C During anaphase chromosome have two chromatids.
D Telophase I may be absent.
Choose the option with the correct statements.

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 regarding mitosis and meiosis and determine which statements are correct.

### Step 1: Analyze 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 statement is correct.

### Step 2: Analyze Statement B
**Statement B:** "Meiosis introduces variation due to gene exchange or recombination."
- **Explanation:** Meiosis is a process that reduces the chromosome number by half and introduces genetic variation through processes like crossing over and independent assortment. This statement is also correct.

### Step 3: Analyze Statement C
**Statement C:** "During anaphase chromosome have two chromatids."
- **Explanation:** During anaphase of mitosis and meiosis, the sister chromatids are separated and pulled towards opposite poles. At this stage, each chromosome consists of a single chromatid. Therefore, this statement is incorrect.

### Step 4: Analyze Statement D
**Statement D:** "Telophase I may be absent."
- **Explanation:** In some organisms, telophase I can indeed be skipped, leading directly to the second meiotic division. This statement is correct.

### Conclusion
- **Correct Statements:** A, B, and D are correct.
- **Incorrect Statement:** C is incorrect.

### Final Answer
The option with the correct statements is **option 3 (A, B, D are correct).**

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