Meiosis II & Significance — NEET Biology MCQs with Solutions
Free NEET Biology Meiosis II & Significance MCQs with step-by-step solutions (6 questions). Part of Cell Cycle and Cell Division. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Meiosis II & Significance · easy · theory
Meiosis II is similar to mitosis in that it involves the separation of:
A. Homologous chromosomes
B. Whole bivalents
C. Nucleoli
D. Sister chromatids ✓ Correct
Solution: Meiosis II is equational — sister chromatids separate, like in mitosis, but starting from haploid cells.
Q2 — Meiosis II & Significance · easy · theory
The total number of haploid cells produced at the end of meiosis (I + II) from one cell is:
A. Two
B. Eight
C. One
D. Four ✓ Correct
Solution: Meiosis yields four haploid daughter cells from a single diploid parent cell.
Q3 — Meiosis II & Significance · medium · theory
Between meiosis I and meiosis II, DNA replication:
A. Occurs again
B. Occurs twice
C. Does NOT occur (no S phase in interkinesis) ✓ Correct
D. Occurs only in males
Solution: Interkinesis is short with no DNA synthesis, so meiosis II directly separates the already-duplicated chromatids.
Q4 — Meiosis II & Significance · medium · theory
Genetic variation among gametes produced by meiosis arises mainly from:
A. Crossing over and independent assortment of chromosomes ✓ Correct
B. DNA replication errors only
C. Mitosis
D. Cytokinesis
Solution: Recombination (crossing over) and random (independent) assortment of homologues in metaphase I generate variation.
Q5 — Meiosis II & Significance · hard · theory
A diploid cell (2n = 4) undergoing meiosis can produce gametes with how many different chromosome combinations, due to independent assortment alone (2^n)?
A. 8
B. 4 (2² ) ✓ Correct
C. 2
D. 16
Solution: With n = 2, independent assortment alone gives 2ⁿ = 2² = 4 combinations (crossing over increases this further).
Q6 — Meiosis II & Significance · hard · theory
The evolutionary significance of meiosis lies in that it:
A. Prevents variation
B. Maintains chromosome number across sexual generations AND generates genetic variation ✓ Correct
C. Is a form of asexual reproduction
D. Doubles the chromosome number each generation
Solution: Halving the chromosome number balances the doubling at fertilisation, keeping the number constant, while recombination provides raw material for evolution.