1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Occurrence of endemic species in South America and Australia is due to
A
These is no terrestrial route to these places
B
Retrogressive evolution
C
These species has been extinct from other regions
D
Continental separation
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
In Negative operon : -
A
CAMP have negative effect on lac operon
B
Co-repressor binds with inducer
C
Co-repressor binds with repressor
D
Co-repressor does not binds with repressor
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Gene and cistron words are sometimes used synonymously because : -
A
One gene contains one cistron
B
One cistron contains many gene
C
One gene contains no cistron
D
One gene contains many cistrons
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Which statement is correct about centre of origin of plant ?
A
Climatic condition more favourable
B
More diversity in improved variety
C
None
D
Frequency of dominant gene is more