1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
A women with 47 chromosomes due to three copies of chromosome 21 is characterized by
A
triploidy
B
Down’s syndrome
C
superfemaleness
D
Turner’s syndrome
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 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
4
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
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