NEET 2023 Phase 2 · BiologyPloidyPrevious Year Question
During which stages of mitosis and meiosis, respectively does the centromere of each chromosome split?
Answer: (B) Anaphase, Anaphase II. Answer: Anaphase, Anaphase II Solution: In mitosis the centromere of each chromosome splits at anaphase, separating sister chromatids.
- A.Telophase, Anaphase I
- B.Anaphase, Anaphase II✓
- C.Metaphase, Metaphase II
- D.Prophase, Telophase I
Correct Answer
(B) Anaphase, Anaphase II
Solution & Explanation
Answer: Anaphase, Anaphase II Solution: In mitosis the centromere of each chromosome splits at anaphase, separating sister chromatids. In meiosis the centromere splits only at anaphase II (anaphase I separates homologous chromosomes while sister chromatids remain joined at their centromeres). Hence the splitting occurs at anaphase and anaphase II respectively. NCERT Reference: Ch 10, p.127, lines 22-23 — "Anaphase II: It begins with the simultaneous splitting of the centromere of each chromosome"
🎯
43,000+ questions in हिंदी & English · one-tap toggle
Open →📚Practice all NEET Biology PYQs chapter-wise →💡Don't get it? Learn the Cell Cycle and Cell Division concepts →Practice NEET 2023 Phase 2 Biology — free, with instant solutions
43,000+ NEET questions solved step-by-step, chapter-wise, in the MedicNEET app.
More NEET PYQ solutions
BiolWhich of the following stages of meiosis involves division of centromere?BiolWhich of the following stages of meiosis involves division of centromere?BiolWhich one of the following is an example of ex-situ conservation?BiolGiven below are two statements: Assertion (A): Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus. Reason (R): Presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells. In the light of the above statements, choose the correct answer: (NEET 2025)BiolWhich of the following is an example of a zygomorphic flower? (NEET 2025)BiolWhich of the following is an example of actinomorphic flower? (NEET 2024)BiolWhich of the following are the post-transcriptional events in an eukaryotic cell? A. Transport of pre-mRNA to cytoplasm prior to splicing B. Removing of introns and joining of exons C. Addition of methyl group at 5′ end of hnRNA. D. Addition of adenine residues at 3′ end of hnRNA. E. Base pairing of two complementary RNAs. Choose the correct answer from the options given below:BiolWho proposed that the genetic code for amino acids should be made up of three nucleotides?