241.
Choose the incorrect match
A
Nucleus : RNA
B
Lysosome : protein synthesis
C
Mitochondria : respiration
D
Cytoskeleton : microtubules
Answer :
Lysosome : protein synthesis
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242.
In which order, cytokinesis occurs in plants
A
Centripetal
B
Centrifugal
C
Oblique
D
Equatorial
Answer :
Centrifugal
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243.
Which does not occurs in prophase
A
Hydration of chromatin
B
Dehydration of chromation
C
Appearance of chromosome
D
Disappearance of nuclear memb . and nucleolus
Answer :
Hydration of chromatin
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244.
Amitosis is characteristic of
A
Higher plants
B
Higher animals
C
Bryopyta
D
Lower organisms
Answer :
Lower organisms
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245.
Arrangement of ascopores in ascus of Neurospora is 2 + 2 + 2 + 2. What is the number of recombinant type of ascospores
A
2
B
4
C
6
D
8
Answer :
4
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246.
At metaphase, chromosomes are attached to the spindle fibres by their:
A
satellites
B
secondary constrictions
C
kinetochores
D
centromere
Answer :
kinetochores
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247.
During gamete formation, the enzyme recombinase participates during
A
Metaphase - I
B
Anaphase - II
C
Prophase - I
D
Prophase - II
Answer :
Prophase - I
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248.
Term meiosis was conded by
A
W. Flemming
B
A, Flemming
C
Farmer and Moore
D
Boveri
Answer :
Farmer and Moore
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249.
Chromosomes, Present in prolonged prophase in the salivary glands of Drosophila are
A
Polytene chromosome
B
B-chromosomes
C
Lampbrush chromosome
D
Supenumerary chromososmes
Answer :
Polytene chromosome
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250.
Longest phase of mitosis is
A
Prophase
B
Metaphase
C
Anaphase
D
Telephae
Answer :
Prophase
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