Meiosis II and its outcome — NEET & JEE Questions

Question 1 · difficulty L1 · recall

Meiosis II is most similar to

• A. mitosis
• B. DNA replication
• C. binary fission of prokaryotes only
• D. fertilisation

Question 2 · difficulty L2 · understanding

Why is meiosis II described as an equational division?

• A. Homologous chromosomes separate
• B. Sister chromatids separate without changing chromosome number
• C. DNA replicates again before division
• D. Chromosome number is doubled

Question 3 · difficulty L2 · understanding

During anaphase II,

• A. sister chromatids separate and move to opposite poles
• B. homologous chromosome pairs separate
• C. DNA replicates
• D. synapsis occurs

Question 4 · difficulty L2 · understanding

DNA replication between meiosis I and meiosis II

• A. does not occur
• B. occurs fully
• C. doubles chromosome number
• D. creates homologous chromosome pairs

Question 5 · difficulty L3 · application

A diploid cell completes meiosis normally. What is the usual final outcome with respect to chromosome number?

• A. Two diploid cells
• B. Four haploid cells
• C. Four diploid cells
• D. One haploid and one diploid cell

Question 6 · difficulty L3 · application

At metaphase II, chromosomes align

• A. individually at the equator
• B. as homologous bivalents
• C. only at the poles
• D. as uncondensed chromatin

Question 7 · difficulty L3 · application

Starting from one diploid meiocyte, successful completion of meiosis generally produces

• A. four haploid cells
• B. two diploid cells
• C. one tetraploid cell
• D. eight diploid cells

Question 8 · difficulty L3 · application

Why are the four meiotic products often genetically different?

• A. Crossing over and independent assortment create different allele combinations
• B. Meiosis copies the genome identically four times
• C. No recombination occurs
• D. All homologues remain together

Question 9 · difficulty L4 · application

A cell entering meiosis II is haploid but each chromosome still consists of two chromatids. Why?

• A. Homologues separated in meiosis I, but sister chromatids did not
• B. DNA replicated after meiosis I
• C. Chromosome number was never reduced
• D. Centromeres divided in anaphase I

Question 10 · difficulty L4 · application

If sister chromatids fail to separate in anaphase II for one chromosome, which process has failed?

• A. Disjunction in meiosis II
• B. Synapsis in zygotene
• C. Crossing over in pachytene
• D. Homologue pairing in meiosis I