301.
How many microspore mother cells are required to produce 80 male gametes in Angiosperms
A
10
B
20
C
40
D
80
Answer :
10
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302.
Peristent nuclear membrane and intranuclear spindle are characteristic of
A
Cryptomitosis
B
endomitosis
C
Free nuclear div
D
Mitosis
Answer :
Cryptomitosis
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303.
In cell cycle, which stage is misnomerly called resting phase
A
S-phase
B
Telophase
C
Cytokinesis
D
Interphase
Answer :
Interphase
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304.
In which stage of cell division , division of matrix of chromosome occurs
A
Late prothase
B
Early metaphase
C
Late metaphase
D
Anaphase
Answer :
Late metaphase
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305.
The characteristic of blue-green algae is
A
DNA without histone
B
Nucleus absent
C
Nuclear membrane absent
D
All of the above
Answer :
All of the above
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Cynobacteria is a prokaroyotic cell so it shows all charactertics of bacterial cell.
306.
Causes of Cancer is
A
Fast and uncontrolled cell division by Meiosis
B
Stop the process which controls cell division in Mitosis
C
Over growth of daughter cells in telophase and due to failure of cleavage furrow an non separation of cells
D
Unequal amount of DNA is daughter cells formed by Mitosis.
Answer :
Stop the process which controls cell division in Mitosis
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307.
Smallest phase of mitosis is
A
Prophase
B
Metaphase
C
Anaphase
D
Telophase
Answer :
Anaphase
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308.
Terminatlization process starts in
A
Leptotene
B
Zygotene
C
Diplotene
D
Diakinesis
Answer :
Diplotene
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309.
Which one of the following structures will not be common to mitotic cells of higher plants?
A
cell plate
B
centriole
C
centromere
D
spindle fibres
Answer :
centriole
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310.
Which of the following do not possess lipoproteinaceous membrane
A
Lysosomes
B
lomasomes
C
Ribosomes
D
Sphaerosomes
Answer :
Ribosomes
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