1
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
Gene regulation governing lactose operon of E.coli that involves the lac I gene product is
A
negative and inducible because repressor protein prevents transcription.
B
positive and inducible because it can be induced by lactose
C
negative and repressible because repressor protein prevents transcription
D
feedback inhibition because excess of $$\beta $$-galactosidase can switch off transcription
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
In sea urchin DNA, which is double stranded, 17% of the bases were shown to be cytosine, The percentages of the other three bases expected to be present in this DNA are
A
G 17%, A 16.5%, T 32.5%
B
G 17%, A 33%, T 33%
C
G 8.5%, A 50%, T 24.5%
D
G 34%, A 24.5%, T 24.5%
3
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
Match each disease with its correct type of vaccine
Column I Column II
A. Tubeculosis (i) Harmless virus
B. Whooping cough (ii) Inactivated toxin
C. Diphtheria (iii) Killed bacteria
D. Polio (iv) Harmless bacteria
A
A - (i), B - (ii), C - (iv), D - (iii)
B
A - (iv), B - (iii), C - (ii), D - (i)
C
A - (ii), B - (i), C - (iii), D - (iv)
D
A - (iii), B - (ii), C - (iv), D - (i)
4
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
HIV that causes AIDS, first starts destroying
A
thrombocytes
B
leucocytes
C
helper T-lymphocytes
D
B-lymphocytes
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