Cell Division Or Cell cycle Free Question Bank
Which stages of cell division do the following figures A and B represent respectively? Â Fig. A Fig. B (1) Prophase Anaphase (2) Metaphase Telophase (3) Telophase Metaphase (4) Late Anaphase Prophase
A 1B 2
C 3
D 4
E NA
During oogenesis the cell that is fertilized by a sperm to become an egg is
A primary spermatocyteB secondary oocyte
C primary oocyte
D secondary spermatocyte
E NA
A bivalent consists of
A Two chromatids and one centromereB Four chromatids and two centromeres
C Two chromatids and two centromeres
D Four chromatids and four centromeres
E NA
A change in the amount of yolk and its distribution in the egg will affect:
A FertilizationB Formation of zygote
C Pattern of cleavage
D Number of blastomeres produced
E NA
Chromosomes can be counted best at the stage of
A MetaphaseB Late anaphase
C Telophase
D Late prophase
E NA
Given below is a schematic break-up of the phases/stages of cell cycle Which one of the following is the correct indication of the stage/phase in the cell cycle?
A A-CytokinesisB B-Metaphase
C C-Karyokinesis
D D-Synthetic phase
E NA
DNA replication takes place during
A S - phaseB G2 - phase
C G1 - phase
D Prophase
E NA
During meiosis I, the number of chromosomes is
A HalvedB Tripled
C Doubled
D Quadrupled
E NA
During mitosis ER and nucleolus begin to disappear at
A Early prophaseB Late prophase
C Early metaphase
D Late metaphase
E NA
Crossing over occurs in
A PachyteneB Zygotene
C Leptotene
D Diplotene
E NA
Cell division can not be stopped in which phase of the cell cycle?
A G1-phaseB G2-phase
C S-phase
D Prophase
E NA
What type of plant is formed when colchicine is used in the process of development of Raphanobrassica?
A AutotetraploidB Haploid
C Triploid
D Allotetraploid
E NA
The non-sister chromatids twist around and exchange segments with each other during
A LeptoteneB Diakinesis
C Diplotene
D Pachytene
E NA
Synapsis occurs between
A mRNA and ribosomesB A male and a female gamete
C Two homologous chromosomes
D Spindle fibres and centromere
E NA
If you are provided with root-tips of onion in your class and are asked to count the chromosomes which of the following stages can you most conveniently look into:
A ProphaseB Anaphase
C Telophase
D Metaphase
E NA
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