Select the correct option with respect to mitosis:
Correct answer: D. Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.
- A. Chromatids separate but remain in the centre of the cell in anaphase.
- B. Chromatids start moving towards opposite poles in telophase.
- C. Golgi complex and endoplasmic reticulum are still visible at the end of prophase.
- D. Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.
Explanation
(d) : The plane of alignment of the chromosomes at metaphase is referred to as the metaphase plate. The key features of metaphase are, (1) Spindle fibres attach to kinetochores of chromosomes (2) Chromosomes are moved to spindle equator and get aligned along metaphase plate through spindle fibres to both poles.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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