Spindle fibres attach on to
(1) Kinetochore of the chromosome
(2) centromere of the chromosome
(3) Kinetosome of the chromosome
(4) telomere of the chormosome
During cell division, the spindle fibres attach to the chromosomes at a region called
The figurees below shows 3 phases of mitosis select the option given correct identification together with the correct event ?
1. C- Telophase-Nuclear envelope assembles around the chromosome clusters
2. B- Anaphase-Segregation of homologous chromosomes.
3. A- Prophase-Chromosomes get fully condensed.
4. C- Metaphase-Condensation of chromatin to form chromosome
Best stage to observe shape, size and number of chromosomes is
Which phase of mitosis is essentially the reverse of prophase in terms of nuclear changes?
Which is the characteristic feature of metaphase?
1. Spindle fibres attach to kinetochores of
2. Initiation of condensation of chromosomal material.
3. Chromosomes cluster at opposite spindle poles.
4. Disappearance of Golgi complexes, endoplasmic
reticulum, nucleolus, and the nuclear envelope.
Major event that occurs during anaphase of mitosis which brings about equal distribution of chromosomes is:
1. Condensation of chromatin
2. Replication of genetic material
3. Splitting of centromere
4. Pairing of homologous chromosomes
Select the correct option with respect to mitosis.
1. Chromatids start moving towards opposite poles in telophase
2. Golgi complex and endoplasmic reticulum are still visible at the end of prophase
3. Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase
4. Chromatids separate but remains in the centre of the cell in anaphase
Astral rays arise from
When a cell is viewed under the microscope, it does
not show golgi complex, endoplasmic reticulum,
nucleolus, nuclear envelope in which stage of cell
1. Early prophase
2. Late prophase