11 Biology- 10 Cell Cycle and Cell Division: Online Test
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Developed by Dr. Abhijit Saha, Training Associate (Biology) ZIET Bhubaneswar
Centromere is required for
movement of chromosomes towards poles
If you are provided with root tips of onion in your class and are asked to count the number of chromosomes, which of the following stages can you can most conveniently look into?
If a diploid cell is treated with colchicine, then it becomes
Which of the following is unique to mitosis and not a part of meiosis?
Homologous chromosomes behave independently
Chromatids are separated during anaphase
Homologous chromosomes pair and form bivalents
Homologous chromosomes crossover
A bivalent consists of
two chromatids and one centromere
two chromatids and two centromeres
four chromatids and two centromeres
four chromatids and four centromeres
Spindle fibres are made up of
Pairing of homologous chromosomes that occurs in zygotene, is called
Best material for the study of mitosis in a laboratory is
Crossing over occurs at the
A cell plate is laid down during
none of these
The S-phase of cell cycle is characterised by
duplication of chromosomes
shortening of chromosomes
duplication of DNA
duplication of centriole
Cell division or mitosis is normal process in living cell, but sudden and abnormal mitosis in a organ will frequently result in
which of the following is synthesised in G1 phase?
Chiasmata are most appropriately observed in meiosis during
At which stage, the chromosomes come to lie over equatorial plate?
In which stage of meiosis, do the chromosomes appear as thin threads?
Bouquet formation in meiosis is characteristic of
During meiosis, the centromeres divide during
Bead-like thickenings of leptotene chromosomes, are called
The term meiosis was coined by
Farmer and Moore
Jacob and Monod
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