611.
Bacterial Genome is
A
Double stranded circular DNA
B
Double Stranted linear DNA
C
Single stranded circular DNA
D
Single stranded DNA
Answer :
Double stranded circular DNA
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612.
A mixture of viruses, bacteria & mycoplasma are boiled in a test tube at 100 C for some time which of these would survive
A
Virus
B
Bacteria
C
Mycoplasma
D
All of the above
Answer :
Virus
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613.
Parasitic Amoeba with single pseudopodium
A
Amoeba proteus
B
Amoeba pilasa
C
Amoeba verucosa
D
Entamoeba
Answer :
Entamoeba
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614.
Parasexual cycle occurs in
A
Phycomycetes
B
Deuteromycetes
C
Ascomycetes
D
Basidiomycetes
Answer :
Deuteromycetes
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615.
Litmus is obtained from lichen
A
Lecanora esculenta
B
Roccella tinctoria
C
Clodonia rengiferina
D
Cetraria islandica
Answer :
Roccella tinctoria
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616.
Souring of milk is due to
A
Aerobic bacteria
B
Anaerobic bacteria
C
A and B both
D
None of the above
Answer :
Anaerobic bacteria
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617.
In Amoeba which is responsible for osmoregulation
A
Contractile vacuole
B
Food vacuole
C
Plasmolemma
D
Lysosome
Answer :
Contractile vacuole
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618.
In prokaryotes, the genetic material is
A
linear DNA with histones
B
circular DNA with histones
C
linear DNA without histones
D
circular DNA without histones
Answer :
circular DNA without histones
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In prokayotes nucleoid consist of double stranded circular DNA without histone protein.
619.
The science dealing with vegetable culture is
A
Arboriculture
B
Floriculture
C
Olericulture
D
Sericulture
Answer :
Olericulture
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620.
Conjugation was first discovered in
A
Salmonella
B
Streptococus
C
Bacillus subtillin
D
E.coli
Answer :
E.coli
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