1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In which of the following animals nerve cell is present but brain is absent?
A
sponge
B
Earthworm
C
Cockroach
D
Hydra
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In bacteria, plasmid is
A
extra chromosomal material
B
main DNA
C
non functional DNA
D
repetitive gene.
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Some bacteria are able to grow in streptomycin containing medium due to
A
natural selection
B
induced mutation
C
reproductive isolation
D
genetic drift.
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Choose the correct sequence of stages of growth curve for bacteria.
A
Lag, log, stationary, decline phase
B
Lag, log, decline, stationary phase
C
Stationary, lag, log, decline phase
D
Decline, lag, log phase, stationary