1
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Due to the cross between TTRr × ttrr the resultant progenies showed how many percent plants tall, red flowered :
A
50%
B
100%
C
75%
D
25%
2
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Mongolian idiots are due to trisomy in 21st chromosome is called :
A
Kleinfelters syndrome
B
Down's syndrome
C
Turner's syndrome
D
Triplex syndrome
3
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
In Drosophila the XXY condition leads to femaleness whereas in human beings the same condition leads to Klienfelter's syndrome in male. It proves :
A
Y chromosome is active in sex determination in both human beings and Drosophila
B
In Drosophila Y-chromosome decides femaleness
C
Y chromosome of man have genes for syndrome
D
In human beings Y chromosome is active in sex determination
4
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Erythroblastosis foetalis is caused when :
A
Rh female & Rh+ male
B
Rh female & Rh male
C
Rh+ female & Rh+ male
D
Rh+ female & Rh male
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