Which is the primary constriction for every visible chromosome?(a) Centromere(b) Ribosomes(c) Kinetochores(d) HistonesThis question was posed to me in unit test.Question is from Cell topic in chapter Cell : The Unit of Life of Biology – Class 11

Which is the primary constriction for every visible chromosome?(a) Cen

1.	Which is the primary constriction for every visible chromosome?(a) Centromere(b) Ribosomes(c) Kinetochores(d) HistonesThis question was posed to me in unit test.Question is from Cell topic in chapter Cell : The Unit of Life of Biology – Class 11
Answer» Correct option is (a) Centromere For explanation I would say: Every visible CHROMOSOME has two sister chromatids which are CONSTRICTED together at a point known as the centromere.During MITOSIS, the spindle fibres attach to the CHROMOSOMES via the centromere.

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