1
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Silencing of mRNA has been used in producing transgenic plants resistant to :
A
White rusts
B
Nematodes
C
Bacterial blights
D
Bollworms
2
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Which one of the following options gives the correct matching of a disease with its causative organism and mode of infection ?
A
Disease $$ \to $$ Pneumonia, Causative Organisms $$ \to $$ Streptococcus pneumoniae, Mode of Infection $$ \to $$ Droplet infection
B
Disease $$ \to $$ Malaria, Causative Organisms $$ \to $$ Plasmodium vivax, Mode of Infection $$ \to $$ Bite of male Anopheles mosquito
C
Disease $$ \to $$ Elephantiasis , Causative Organisms $$ \to $$ Wuchereria bancrofti, Mode of Infection $$ \to $$ With infected water and food
D
Disease $$ \to $$ Typhoid , Causative Organisms $$ \to $$ Salmonella typhi, Mode of Infection $$ \to $$ With inspired air
3
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Common cold is not cured by antibiotics because it is :
A
caused by a Gram-positive bacterium
B
caused by a Gram-negative bacterium
C
not an infectious disease
D
caused by a virus
4
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because
A
female gametophyte is free and gets dispersed like seeds.
B
female gametophyte lacks archegonia.
C
megaspores possess endosperm and embryo surrounded by seed coat.
D
embryo develops in female gametophyte which is retained on parent sporophyte.