841.
In sol type of colloidal solution, dispersion phase is
A
Solid
B
Liquid
C
Gas
D
None of the above
Answer :
Liquid
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842.
Golgibody orginatates from
A
E. R
B
Mitochondria
C
Nucleus
D
Proplastid
Answer :
E. R
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843.
Which microscope is used to study the dynamic aspects of a cell
A
Electron microscope
B
Scanning microscope
C
Light compound microscope
D
Phase contrast microscope
Answer :
Phase contrast microscope
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844.
The genes are responsible for growth and differentiation in an organism through regulation of
A
Translocation
B
Transformation
C
Transduction and translation
D
Transduction and transcription
Answer :
Transduction and transcription
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845.
The enzyme which can cut molecules of DNA in to segments is known as
A
DNA Polymerase
B
DNA Ligase
C
Restriction enzyme
D
DNA Gyrse
Answer :
Restriction enzyme
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846.
The double helix model of Watson and Crick is known as
A
B-DNA
B
B-DNA
C
Z-DNA
D
D-DNA
Answer :
B-DNA
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847.
What is function of trace elements which occur in protoplasm
A
Formation of enzymes
B
Formation of Hormones
C
Formation of Haemoglobin
D
Formation of Chlorophyll
Answer :
Formation of enzymes
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848.
One of the characteristics of DNA is
A
Uracil
B
Deoxyribose sugar
C
Single strandedness
D
Ability of protein synthesis
Answer :
Deoxyribose sugar
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849.
Role of nucleus in morphology of plant was first discovered in
A
Acetabularia
B
Maize
C
Pea
D
Neurospora
Answer :
Acetabularia
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850.
DNA synthesis takes place by
A
Replication
B
Transcription
C
Translation
D
Transduction
Answer :
Replication
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