1
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
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Sickle cell anaemia has not been eliminated from the African population because-
A
It is not a fatal disease
B
It is controlled by dominant genes
C
It is controlled by recessive genes
D
It provides immunity against malaria
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
If a colour blind woman marries a normal visioned man, their sons will be
A
All normal visioned
B
Three-fourths colourblind and one-fourth normal
C
One-half colourblind and one-half normal
D
All colourblind
4
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