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Select the correct option with respect to mitosis.
A
Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase
B
Chromatids separate but remain in the centre of the cell in anaphase
C
Chromatids start moving towards opposite poles in telophase
D
Golgi complex and endoplasmic reticulum are still visible at the end of prophase
Detailed Solution
Metaphase: spindle fibres attach to the kinetochores and the chromosomes move to the spindle equator and get aligned along the metaphase (equatorial) plate. This statement is correct.
Anaphase: the centromeres split and the chromatids separate and move to the opposite poles; they do not remain in the centre.
Telophase: the chromosomes have already reached the poles; they decondense and the nuclear envelope reforms. The movement towards the poles starts in anaphase.
At the end of prophase the Golgi complexes, endoplasmic reticulum, nucleolus and nuclear envelope are no longer visible.
Hence the correct statement is the one about metaphase.
Anaphase: the centromeres split and the chromatids separate and move to the opposite poles; they do not remain in the centre.
Telophase: the chromosomes have already reached the poles; they decondense and the nuclear envelope reforms. The movement towards the poles starts in anaphase.
At the end of prophase the Golgi complexes, endoplasmic reticulum, nucleolus and nuclear envelope are no longer visible.
Hence the correct statement is the one about metaphase.