1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Basophilic prokaryotes
A
grow and multiply in very deep marine sediments
B
occur in water containing high concentrations of barium hydroxide
C
readily grow and divide in sea water enriched in any soluble salt of barium
D
grow slowly in highly alkaline frozen lakes at high altitudes.
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Lichens are well known combination of an alga and a fungus where fungus has
A
a saprophytic relationship with the alga
B
an epiphytic relationship with the alga
C
a parasitic relationship with alga
D
a symbiotic relationship with alga.
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Phenetic classification of organisms is based on
A
observable characteristics of existing organisms
B
the ancestral lineage of existing organisms
C
dendrogram based on DNA characteristics.
D
sexual characteristics.
4
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
A free living nitrogen-fixing cyanobacterium which can also symbiotic association with the water ferm Azolla is
A
Tolypothrix
B
Chlorella
C
Nostoc
D
Anabaena.

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