221.
Mitochondria and chloroplast are A
Both (A) and (B) are correct
B
(B) is true but (A) is false
C
(A) is true but (B) is false
D
Both (A) and (B) are false
Answer :
(A) is true but (B) is false
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222.
Which of the following is not found in DNA A
Adenine
B
Cytosine
C
Uracil
D
Thymine
Answer :
Uracil
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223.
Cell recognition and adhesion occur due to biochemicals of cell membranes named A
proteins
B
lipids
C
proteins and lipids
D
glycoproteins and glycolipids
Answer :
glycoproteins and glycolipids
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224.
Number of carbons in ring of deoxy ribose sugar is A
Four
B
Five
C
Six
D
Three
Answer :
Five
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225.
DNA is a genetic material was proved A
Griffith
B
Linin Pauling
C
Messelon and stahl
D
Watson
Answer :
Griffith
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226.
Prokaryotic genetic system contains A
DNA & histones
B
RNA & histones
C
Either DNA or hitsones
D
DNA but no histones
Answer :
DNA but no histones
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227.
E.R. is not related with A
Plamalaemma
B
Golgbody
C
Mitohondria
D
Nucleus
Answer :
Mitohondria
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228.
Why is a capsule advantageous to a bacterium? A
It allows the bacterium to attach to the surface
B
It protects the bacterium from desiccation
C
It provides means of locomotion
D
It allows bacterium to "hide" from host's immune system
Answer :
It allows bacterium to "hide" from host's immune system
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229.
T-tubules of muscles are modificatin of A
E. R.
B
Golgibody
C
Microtubules
D
Microtilaments
Answer :
E. R.
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230.
Eukaryotic chromosome different from prokaryotic A
RNA
B
DRNA
C
DNA and lipid
D
DNA and histone
Answer :
DNA and histone
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