551.
Which bacteria reduced fertility of soil A
Nitrosomonas
B
Cyanobacteria
C
Anotobacter
D
Bacillus denitrificans
Answer :
Bacillus denitrificans
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552.
The sac fungi belongs to A
Ascomycetes
B
Basidiomycetes
C
Phycomycetes
D
Deuteromycetes
Answer :
Ascomycetes
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553.
From one crop to next another ; the infection of Alubo reaches in the form of A
Conidida
B
Mycelium
C
Oospore
D
Zoospore
Answer :
Oospore
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554.
Cell wall of Mucor is made up of A
Chitin
B
Cellulose
C
Pectin
D
Mucilage
Answer :
Chitin
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555.
Genophore/bacterial genome or nucleoid is made of A
histones and nonhistones
B
RNA and histones
C
a single double stranded DNA
D
a single stranded DNA
Answer :
a single double stranded DNA
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The bacterial genome/nucleoid is made of single circular double stranded DNA without histone protein as it is a prokaryotic organisms. The genome contains some 100 chemical sites or loci. Each locus in E. coli contains about 40 genes.
556.
The most efficient locomotion is protista is through A
Pseudopodia
B
Flagella
C
Cilia
D
Tentacles
Answer :
Cilia
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557.
Entamoeba histolytica is a kind of human intestinal parasite it will soon die if kept in fresh water since A
It will have no food
B
It has no pseudopodia
C
It has no food vacuole
D
It has no contractile vacuole
Answer :
It has no contractile vacuole
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558.
In blue green algae potosynthesis occurs at A
Chromatopore
B
Choroplast
C
Photosynthetic lamelle or thalakoids
D
Chromoplast
Answer :
Photosynthetic lamelle or thalakoids
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559.
Mycorrhiza is A
a symbiotic association of plant roots and certain fungi
B
an association of algae with fungi
C
a fungus parasitising root system of higher plants
D
an association of Rhizobium with the roots of leguminous plants
Answer :
a symbiotic association of plant roots and certain fungi
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560.
Chlorophyll of prokaryotes found on A
Thylakoids
B
Grunum
C
Thylakoids and granum
D
Plasma membrane
Answer :
Thylakoids
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