1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which one of the following is an example of polygenic inheritance ?
A
Skin colour in humans
B
Pod shape in garden pea
C
Production of male honey bee
D
Flower colour in Mirabilis jalapa
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
In Mendel's experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY × rryy ?
A
Round seeds with yellow cotyledons, and wrinkled seeds with yellow cotyledons
B
Only wrinkled seeds with green cotyledons
C
Only wrinkled seeds with yellow cotyledons
D
Only round seeds with green cotyledons
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Both sickle cell anemia and Huntington's chorea are-
A
Congenital disorders
B
Bacteria-related diseases
C
Virus-related diseases
D
Pollutant-induced disorders
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Test cross involves-
A
Crossing between two F1 hybrids
B
Crossing the F1 hybrid with a double recessive genotype
C
Crossing between two genotypes with recessive trait
D
Crossing between two genotypes with dominant trait

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