1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
One turn of the helix in a B-form DNA is approximately -
A
20 nm
B
3.4 nm
C
2 nm
D
0.34 nm
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Test cross involves-
A
Crossing between two F1 hybrids
B
Crossing the F1 hybrid with a double recessive genotype
C
Crossing between two genotypes with recessive trait
D
Crossing between two genotypes with dominant trait
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which antibiotic inhibits interaction between tRNA and mRNA during bacterial protein synthesis ?
A
Neomycin
B
Erythromycin
C
Tetracycline
D
Streptomycin
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Antiparallel strands of a DNA molecule means that-
A
The phosphate groups at the start of two DNA strands are in opposite position (pole)
B
One strand turns anti-clockwise
C
One strand turns clockwise
D
The phosphate groups of two DNA stands, at their ends, share the same position