1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
The genes controlling the seven pea characters studied by Mendel are now known to be located on how many different chromosomes ?
A
Six
B
Seven
C
Five
D
Four
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Pattern baldness, moustaches and beard in human males are examples of : -
A
Sex limited traits
B
Sex influenced traits
C
Sex determining traits
D
Sex linked traits
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Two crosses between the same pair of genotypes or phenotypes in which the sources of the gametes are reversed in one cross, is known as : -
A
Reciprocal cross
B
Reverse cross
C
Test cross
D
Dihybrid cross
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Down's syndrome is caused by an extra copy of chromosome number 21. What percentage of offspring produced by an affected mother and a normal father would be affected by this disorder ?
A
50%
B
100%
C
75%
D
25%
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