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Cell Cycle - 20 MCQs

Q1. Correct sequence of cell cycle
S-M-G1-G2
S-G1-G2-M
M-G1-G2-S
G1-S-G2-M

Q2. Restriction in G1 leads to
S phase
G0 phase
G2 phase
M phase

Q3. DNA doubles during
S phase
G1 phase
G2 phase
M phase

Q4. Centromere is required for
Transcription
Crossing over
Cytoplasmic cleavage
Movement of chromosomes to poles

Q5. Synapsis occurs between
Homologous chromosomes
mRNA and ribosomes
Spindle and centromere
Male and female gametes

Q6. Crossing over starts in
Leptotene
Pachytene
Zygotene
Diplotene

Q7. Colchicine arrests cells at
Prophase
Anaphase
Interphase
Metaphase

Q8. Pairing of homologous chromosomes is
Disjunction
Synapsis
Bivalent
Synergids

Q9. Anastral mitosis is typical of
Higher plants
Higher animals
Lower animals
All organisms

Q10. Cell term coined by
Robert Brown
Flemming
Boveri
Robert Hooke

Q11. Mature neurons remain in
G0 phase
G1
S
G2

Q12. Longest phase of meiosis
Metaphase I
Prophase I
Anaphase I
Telophase I

Q13. Chromosomes are best counted in
Prophase
Anaphase
Telophase
Metaphase

Q14. Karyokinesis means
Cytoplasmic division
Nuclear division
DNA replication
Cell growth

Q15. 1024 cells require mitotic divisions
10
20
40
64

Q16. Proteins for mitosis synthesized in
G1
S
M
G2 phase

Q17. Spindle fibres are made of
Proteins
Lipids
Cellulose
Pectin

Q18. DNA replication occurs in
G1
S phase
G2
M

Q19. Interphase has
2
5
8
3 subphases

Q20. Prophase is characterized by
Centromere splitting
Thread-like chromosomes
Equatorial arrangement
Homologous pairing

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