581.
Carbohydrates which present in th cell membrane take part in
A
Transport of substance
B
Cell recognition
C
Attachment to microfilament
D
Attachment to microtubules
Answer :
Cell recognition
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582.
An exception to cell theory is
A
Erythrocytes
B
Bacteria
C
Fungi
D
Virus
Answer :
Virus
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583.
Double helix model on DNA which was proposed by Watson and crick was of
A
C-DNA
B
B-DNA
C
D-DNA
D
Z-DNA
Answer :
B-DNA
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584.
Termination of chain growth in protein synthesis is brought about by
A
UUG, UGC, UCA
B
UCG, GCG, ACC
C
UAA, UAG, UGA
D
UUG, UAG, UCG
Answer :
UAA, UAG, UGA
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585.
Chargaag's rule is given as
A
Purines ≠ Pyrimidines
B
A + G = T + C
C
A + U = G + C
D
A + T / G + C = Const
Answer :
A + G = T + C
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586.
The process of m RNA synthesis on a DNA is known as
A
Translation
B
Transcription
C
Transduction
D
Transformation
Answer :
Transcription
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587.
A fluorescent microscope is used
A
For increasing revolving power
B
for obtaining X-ray diffraction pattern of DNA
C
To study cell and their components in a living state
D
To localise cell structure stained with flurochrome dyes
Answer :
To localise cell structure stained with flurochrome dyes
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588.
Golgibody is absent in
A
Prokaryotes
B
Mature mammalian R. B. C.
C
Akaryotes
D
All of the above
Answer :
All of the above
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589.
Which chromosome remains condense furing interphase
A
Sormal X-chromosome
B
X-chromosome of Bar body
C
Autosomes
D
None of the above
Answer :
X-chromosome of Bar body
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590.
Ripening fruits softene due to
A
Conversion of starch into sugars
B
Solubilistion of pectates in middle lamella
C
Formation of organic acids
D
Conversion of fats into carbohydrates
Answer :
Solubilistion of pectates in middle lamella
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