Read the following statements w.r.t. M-phase and select the correct option:
A. Mitosis involves a series of changes in the nucleus only.
B. Clear-cut lines cannot be drawn between two stages of karyokinesis.
C. Cytokinesis occurs after karyokinesis.
D. In M-phase cell duplicates its cellular components and distributes them in an orderly manner.
A. Mitosis involves a series of changes in the nucleus only.
B. Clear-cut lines cannot be drawn between two stages of karyokinesis.
C. Cytokinesis occurs after karyokinesis.
D. In M-phase cell duplicates its cellular components and distributes them in an orderly manner.
Important Questions on Cell Cycle and Cell Division
(i) Spindle fibres attach to kinetochores of chromosomes.
(ii) All the chromosomes coming to lie at the equator.
The events shown below occur during different phases
A. Chromosome identify is lost as discrete elements.
B. Condensation of the chromosome is completed, and they can be observed clearly under the microscope.
C. Chromosomal material becomes untangled.
D. Centromere split and chromatids separate.
A stage of cell division is depicted in the given figure. Select the most appropriate option as an answer which gives the correct identification of the stage.
Read the following statements and identify which ones are true (T) and which ones are false (F).
A. The equational division is usually restricted to the diploid cells only.
B. In some lower plants and some social insects, haploid cells divide by mitosis.
C. The cell divides to restore nucleus cytoplasmic ratio
D. The cells of the upper layer of the epidermis cells of the lining of the gut and blood cells are replaced continuously by mitotic divisions.
