191.
Shape of E.Coli is A
Rod shaped
B
Round
C
Spiral
D
Comma shaped
Answer :
Rod shaped
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192.
"Diatomite" (Keiselgurh) is obtained from A
Myxophyceae
B
Bacilariophyce
C
Pheophyceae
D
Rhodophyeae
Answer :
Bacilariophyce
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193.
Which of the following is not a character of prokaryote A
Lack of well organized nucleus
B
Presence of 70 s ribosome
C
Presence of E.R.
D
Presence of plasmamembrane
Answer :
Presence of E.R.
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194.
Temperature tolerance of thermal blue-green algae is due to A
cell wall structure
B
cell organisation
C
mitochondrial structure
D
homopolar bonds in their proteins
Answer :
homopolar bonds in their proteins
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Some of the blue green algae can tolerate extremes of temperature due to presence of gelatinous sheath, and compactness of protein molecules in protoplasm.
195.
In fungi lump of hyphae is referred to as A
Thallus
B
Haustorium
C
Mycelium
D
Carpogonium
Answer :
Mycelium
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196.
Bacteria differs from other plant in that they lack A
Respiratory assemblies
B
Well defined nucleolus
C
Photo synthetic pigment
D
Protoplasm & E.R
Answer :
Well defined nucleolus
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197.
Pseudoparenchyma occurs in some A
Fungi
B
Bryophyta
C
Bacteria
D
Angiosperms
Answer :
Fungi
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198.
M.S. swaminathan concerned with A
Hybridization breeding
B
Mutation breeding
C
Genetics
D
Eugenics
Answer :
Mutation breeding
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199.
Which of the following is true for a virus A
That a virus does not possess D.S. DNA
B
That a virus does not possess membranes of lipoproteins
C
That a virus does not synthesize enzyme
D
That a virus does not possess any enzyme
Answer :
That a virus does not synthesize enzyme
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200.
Chemical produced by one microbe and inhibit growth of another microbes are called A
Antibiotics
B
Aflatoxin
C
Antibodies
D
Phytoalexin
Answer :
Antibiotics
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