1
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
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt
A
75% will be tall with red fruit
B
25% will be tall with red fruit
C
50% will be tall with red fruit
D
All the offspring will be tall with red fruit
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
In a mutational event, when adenine is replaced by guanine, it is a case of -
A
Frameshift mutation
B
Transition
C
Transversion
D
Transcription