1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which one of the following is an example of polygenic inheritance ?
A
Skin colour in humans
B
Pod shape in garden pea
C
Production of male honey bee
D
Flower colour in Mirabilis jalapa
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Phenotype of an organism is the result of-
A
Environmental changes and sexual dimorphism
B
Cytoplasmic effects and nutrition
C
Genotype and environment interactions
D
Mutations and linkages
3
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
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
EXAM MAP