KCET · BIOLOGY · STD 11 - 10. Cell Cycle and Cell Division
Compare the statement A and B.
Statement A: Synthesis of DNA takes place in the S-phase of interphase.
Statement B: Every chromosome, during metaphase, has two chromatids.
Choose the correct description.
- A Statement A is wrong and B is correct.
- B Statement A is correct and B is wrong.
- C Both the statements A and B are correct and A is the reason for B.
- D Both the statements A and B are correct and A is not the reason for B.
Answer & Solution
Correct Answer
(D) Both the statements A and B are correct and A is not the reason for B.
Step-by-step Solution
Detailed explanation
(D) Both the statements A and B are correct and A is not the reason for B.,
Statement A is correct; DNA synthesis occurs during the S-phase of interphase. During the time the amount of DNA per cell doubles. Statement B is also correct; each chromosome has two chromatids during metaphase. However, Statement A is not the reason for Statement B, as DNA synthesis does not directly cause the presence of two chromatids during metaphase.
Statement A is correct; DNA synthesis occurs during the S-phase of interphase. During the time the amount of DNA per cell doubles. Statement B is also correct; each chromosome has two chromatids during metaphase. However, Statement A is not the reason for Statement B, as DNA synthesis does not directly cause the presence of two chromatids during metaphase.
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