681.
Female Gametangium of Albugo is called
A
Pisit
B
Archegonium
C
Ascogonium
D
Oogonium
Answer :
Oogonium
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682.
Mycoplasma differs from L-forms bacteria in
A
Size of genophre
B
Growth
C
Culture method
D
All of the above
Answer :
All of the above
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683.
Which of the following statements is wrong for viroids?
A
They lack a protein coat
B
They are smaller than viruses
C
They cause infections
D
Their RNA is of high molecular weight
Answer :
Their RNA is of high molecular weight
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684.
Which part of plant is not infected by virus
A
Roots
B
Stem
C
Leaf
D
Apical meristem
Answer :
Apical meristem
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685.
Heterocyst is a structure which is associated with
A
Reproduction
B
Respiration
C
Nitrogen fixation
D
Locomotion
Answer :
Nitrogen fixation
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686.
Albugo produces conidiosporangia
A
In chain
B
In Clusters
C
Single
D
In Clumps
Answer :
In chain
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687.
HIV is
A
A single stranded DNA virus
B
A double stranded DNA virus
C
A single stranded RNA virus
D
A double stranded RNA virus
Answer :
A single stranded RNA virus
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688.
The diatoms do not easily decay like most of the other Algae because
A
They have water proof cells
B
Their walls are mucilagenous
C
They have highly siliceous wall
D
They are non living
Answer :
They have highly siliceous wall
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689.
Palynology is concerned with
A
Nucleus
B
Chromosomes
C
Fossils
D
Pollen and spores
Answer :
Pollen and spores
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690.
How many Amoeba are formed from a single cyst of Entamoeba histolytica
A
2
B
4
C
8
D
16
Answer :
8
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