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A Mitosis produces two identical daughte...

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.

A

All are correct

B

A,B,C are correct

C

A,B,D are correct

D

C,D are correct

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to evaluate each statement regarding mitosis and meiosis and determine which ones are correct. ### Step-by-Step Solution: 1. **Evaluate Statement A: "A Mitosis produces two identical daughter cells."** - 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 chromosome number remains the same, and the genetic material is replicated accurately. - **Conclusion:** This statement is **correct**. 2. **Evaluate Statement B: "Meiosis introduces variation due to gene exchange or recombination."** - 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 during prophase I. This recombination leads to new combinations of genes in the gametes. - **Conclusion:** This statement is **correct**. 3. **Evaluate Statement C: "During anaphase, chromosomes have two chromatids."** - During anaphase of mitosis or meiosis, the centromeres split, and the sister chromatids are pulled apart towards opposite poles. Therefore, at this stage, each chromosome is considered to be a single chromatid after the split. - **Conclusion:** This statement is **incorrect**. 4. **Evaluate Statement D: "Telophase I may be absent."** - In meiosis, particularly during meiosis I, telophase I can be skipped in some organisms, and the cell can proceed directly to meiosis II without completing telophase I. This is true for certain types of cells. - **Conclusion:** This statement is **correct**. ### Final Evaluation: - The correct statements are A, B, and D. - The incorrect statement is C. ### Answer: The option with the correct statements is **A, B, and D**.
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