451.
Cellular furnaces of cells are
A
Chloroplast
B
Mitochondia
C
Ribosome
D
Nucleus
Answer :
Mitochondia
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452.
Nucleotide is
A
N2 - base, pentose sugar and phosphoric acid
B
Nitrogen, Hexose sugar and phospohoric acid
C
Nitrogen base, pentose sugar
D
Nitrogen base, trioses and phosphoric acid
Answer :
N2 - base, pentose sugar and phosphoric acid
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453.
In which stage of cell cycle, DNA replication occurs
A
G1-phase
B
S - phase
C
G2- phase
D
M - phase
Answer :
S - phase
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454.
Grana and stroma lamellae are the parts of
A
Mitochondria
B
Chloroplast
C
Endoplasmic reticulum
D
Vacuoles
Answer :
Chloroplast
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455.
The chromatin material which takes darker stain in intephase is called
A
Euchromatin
B
Hetero chromatin
C
Primary constriction
D
Satellite body
Answer :
Hetero chromatin
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456.
The base sequence of nucleic acid is AGG, GGA, CGA, CCA from this it can be inferred that it is a segment of
A
DNA
B
M - RNA
C
T - RNA
D
Data insufficient
Answer :
Data insufficient
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457.
The main organelle involved in modification and routing of newly synthesized proteins to their destinations is
A
chloroplast
B
mitochondria
C
lysosome
D
endoplasmic Reticulum
Answer :
endoplasmic Reticulum
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458.
Flagella of prokaryotic and eukaryotic cells differ in
A
type of movement and placement in cell
B
location in cell and mode of functioning
C
microtubular organization and type of movement
D
microtubular organization and function
Answer :
microtubular organization and type of movement
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459.
Arm ratio in metacentrin codition is
A
1 : 1
B
1 : 2
C
1 : 3
D
2 : 3
Answer :
1 : 1
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460.
Smallest cell organelle which called cell engine is
A
Ribosome
B
Lysosome
C
Vacuoles
D
Endoplasmic reticulum
Answer :
Ribosome
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