1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Which form of RNA has a structure resembling clover leaf ?
A
r-RNA
B
m-RNA
C
t-RNA
D
hn-RNA
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
After a mutation at a genetic locus the character of an organism changes due to the change in :-
A
Protein synthesis pattern
B
RNA transcription pattern
C
DNA replication
D
Protein structure
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
The following ratio is generally constant for a given species :-
A
A + C / T + G
B
G + C / A+ T
C
A + G / C +T
D
T + C / G + A
4
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms includes -
A
Electron spin resonance (ESR) & fossil DNA
B
Study of carbohydrates/proteins in fossils
C
Study of the conditions of fossilization
D
Study of carbohydrates/proteins in rocks
EXAM MAP