1. Chromosomes are arranged at equatorial plate of division spindle in
a) Prophase
b) Metaphase
c) Anaphase
d) Telophase
Explanation: Chromosomes are arranged at equatorial plate of division spindle in metaphase
2. Chromosomes can be counted best at the stage of
a) Prophase
b) Anaphase
c) Metaphase
d) Telophase
Explanation: Chromosomes can be counted best at the stage of metaphase.
3. The best stage to observe the shape, size and number of chromosomes is
a) Interphase
b) Metaphase
c) Prophase
d) Telophase
Explanation: Metaphase
4. Spindle fibres are made up of
a) Proteins
b) Lipids
c) Cellulose
d) Pectin
Explanation: Spindle fibres are made up of proteins
5. Mitotic spindle is mainly composed of the protein
a) Actin
b) Actomyosin
c) Tubulin
d) Myoglobin
Explanation: Tubulin
6. The separation of daughter chromosomes occurs in
a) The beginning of anaphase
b) Metaphase
c) Late prophase
d) Early prophase
Explanation: The separation of daughter chromosomes occurs in the beginning of anaphase
7. At which stage of mitosis, the chromatids separate and start moving towards poles?
a) Prophase
b) Metaphase
c) Anaphase
d) Telophase
Explanation: Anaphase
8. Mitotic anaphase differs from metaphase in possessing
a) Same number of chromosomes and half number of chromatids.
b) Half the number of chromosomes and same number of chromatids.
c) Half the number of chromosomes and half number of chromatids.
d) Same number of chromosomes and same number of chromatids.
Explanation: Same number of chromosomes and half number of chromatids
9. Animal cells undergo cytokinesis by
a) Furrowing
b) Cell plate
c) Both (a) and (b)
d) Furrowing and followed by the deposition of special materials
Explanation: Animal cells undergo cytokinesis by furrowing
10. Significance of mitosis lies in
a) Producing cells genetically similar to parent cell
b) Occurrence in energy tissue of body
c) Increasing cellular mass
d) Swift division
Explanation: Significance of mitosis lies in producing cells genetically similar to parent cell.