1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
A male human is heterozygous for autosomal genes A and B and is also hemizygous for hemophilic gene h. What proportion of his sperms will be abh :-
A
1/16
B
1/32
C
1/8
D
1/4
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Lack of independent assortment of two genes A and B in fruit fly Drosophila is due to :-
A
Linkage
B
Recombination
C
Repulsion
D
Crossing over
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
A normal woman, whose father was colour-blind is married to a normal man. The sons would be :-
A
All colour-blind
B
75 % colour-blind
C
All normal
D
50% colour-blind
4
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
The recessive genes located on X-chromosomes in humans are always-
A
Expressed in females
B
Sub-lethal
C
Expressed in males
D
Lethal
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