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20 questions
During which phase of mitosis, the mitotic spindle shortens ,
prophase
anaphase
metaphase
telophase
Mitosis can be observed in _____
Polyploid individual
Diploid individual
Haploid individual
All of the above
Mitosis results in
Reduction in chromosome number
Doubling of chromosome number
Constant chromosome number
Increase in cell volume
Mitotic anaphase and metaphase have
chromosomes are halved at anaphase
chromatids are halved at anaphase
the same number of chromosomes and chromatids
both chromosomes and chromatids are halved at anaphase
Answer: (a)
The spindle apparatus is formed during the ________ phase of mitosis.
metaphase
Telophase
anaphase
prophase
If initial amount of DNA is 8C , then after M phase the amount of DNA will be
16C
64C
8C
4C
If you want to count the number of chromosomes, which is the best stage to do so?
prophase
metaphase
anaphase
telophase
Assertion: G1 phase is the interval between mitosis and initiation of DNA replication.
Reason: The cell is metabolically inactive during G1 phase.
If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
If Assertion is true but Reason is false.
If both Assertion and Reason are false.
How many mitotic divisions are required for a single cell to make 128cells ?
28
32
14
7
Colchicine arrests cell division at
interphase
prophase
metaphase
anaphase
In mitosis, centromere divides during
anaphase
metaphase
prophase
telophase
Chromosome start separating at which stage of mitosis
Early metaphase
Late metaphase
anaphase
telophase
In mitosis the movement of chromosomes requires
spindle fibres
aster
actin
myosin
This structure tends to vanish always during meiosis and mitosis
All of these
Plasma membrane
Nucleolus and nuclear membrane
chromosomes
A bacterial cell divides once every minute. It takes an hour to fill a cup. The time taken to fill half cup is:
10 minutes
59 mins
30 mins
50 mins
In mitosis the movement of chromosomes requires
plasmalemma
Presence of centromere
kinetochore
spindle fibres
DNA replication occurs during
prophase
interphase
metaphase
cytokinesis
nuclear membrane and nucleolus disappears at which phase:
metaphase
prophase
anaphase
telophase
Which of the following is not included in karyokinesis?
metaphase
telophase
interphase
anaphase
mitosis is also known as
reduction division
equational division
sub cellular division
none of the above
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