1. When are chromatids clearly visible in meiosis?
a) Zygotene
b) Pachytene
c) Diplotene
d) Diakinesis
Explanation: Pachytene
2. Chiasma formation occurs in
a) Leptotene
b) Zygotene
c) Pachytene
d) Diplotene
Explanation: Chiasma formation occurs in diplotene
3. Cross-like configuration when non-sister chromatids of a bivalent comes in contact during the
first meiotic division are
a) Chiasmata
b) Bivalents
c) Chromomeres
d) None of these
Explanation: Chiasmata
4. Terminalization occurs during
a) Mitosis
b) Diakinesis
c) Cytokinesis
d) Meiosis II
Explanation: Terminalization occurs during Diakinesis
5. Number of chromosome groups at equatorial plate of metaphase I of a plant body having
2n = 50 chromosomes shall be
a) 100
b) 75
c) 50
d) 25
Explanation: 25
6. In meiosis I, the centromere undergoes
a) No division
b) Division between anaphase and interphase
c) Division between prophase and metaphase
d) Division but the daughter chromosomes do not separate
Explanation: In meiosis I, the centromere undergoes no division
7. Meiosis II performs
a) Synthesis of DNA and centromere
b) Separation of sex chromosomes
c) Separation of chromatids
d) Separation of homologous chromosomes
Explanation: Meiosis II performs separation of chromatids
8. Significance of meiosis lies in the
a) Reduction of chromosome number to one half.
b) Maintaining the consistency of chromosome number during sexual reproduction.
c) Production of genetic variability.
d) All of these
Explanation: All of these
9. 200 egg cells are produced by (in meiosis)
a) 50 divisions
b) 100 divisions
c) 200 divisions
d) 400 divisions
Explanation: 200 divisions
10. A cell has 23 pairs of chromosomes just after the completion of mitotic telophase. The number
of chromatids at the preceding metaphase was
a) 23
b) 46
c) 69
d) 92
Explanation: 92