1
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
The figure below shows three steps (A, B, C) of Polymerase Chain Reaction (PCR). Select the option giving correct identification together with what it represents ?
AIPMT 2012 Mains Biology - Biotechnology: Principles and Processes Question 85 English
A
C - Extension in the presence of heat stable DNA polymerase
B
B - Denaturation at a temperature of about 98ºC separating the two DNA strands
C
A - Denaturation at a temperature of about 50ºC
D
A - Annealing with two sets of primers
2
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
Biolistics (gene-gun) is suitable for -
A
DNA finger printing
B
Constructing recombinant DNA by joining with vectors
C
Disarming pathogen vectors
D
Transformation of plant cells
3
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
Read the following four statements (A-D) :
(A) In transcription, adenosine pairs with uracil
(B) Regulation of lac operon by repressor is referred to as positive regulation
(C) The human genome has approximately 50,000 genes
(D) Haemophilia is a sex-linked recessive disease
How many of the above statements are right ?
A
Four
B
Two
C
Three
D
One
4
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
Identify the molecules (a) and (b) shown below and select the right option giving their source and use. AIPMT 2012 Mains Biology - Human Health and Diseases Question 94 English 1 AIPMT 2012 Mains Biology - Human Health and Diseases Question 94 English 2
A
Molecule $$ \to $$ (b) Heroin, Source $$ \to $$ Cannabis sativa, Use $$ \to $$ Depressant and slows down body functions
B
Molecule $$ \to $$ (a) Morphine, Source $$ \to $$ Papaver somniferum , Use $$ \to $$ Sedative and pain killer
C
Molecule $$ \to $$ (a) Cocaine, Source $$ \to $$ Erythroxylum coca , Use $$ \to $$ Accelerates the transport of dopamine
D
Molecule $$ \to $$ (b) Cannabinoid, Source $$ \to $$ Atropa belladona, Use $$ \to $$ Produces hallucinations