1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
ABO blood groups in humans are controlled by the gene I. It has three alleles – IA, IB and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur –
A
One
B
Two
C
Three
D
Four
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Study the pedigree chart given below : AIPMT 2009 Biology - Principles of Inheritance and Variation Question 123 English What does it show ?
A
Inheritance of a recessive sex-linked disease like haemophilia
B
Inheritance of a sex-linked inborn error of metabolism like phenylketonuria
C
The pedigree chart is wrong as this is not possible
D
Inheritance of a condition like phenylketonuria as an autosomal recessive trait
3
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The most popularly known blood grouping is the ABO grouping. It is named ABO and not ABC, because "O" in it refers to having :
A
Other antigens besides A and B on RBCs
B
No antigens A and B on RBCs
C
Overdominance of this type on the genes for A and B types
D
One antibody only-either anti-A and anti-B on the RBCs
4
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Select the incorrect statement from the following :
A
Baldness is a sex limited trait
B
Galactosemia is an inborn error of metabolism
C
Linkage is an exception to the principle of independent assortment in heredity.
D
Small population size results in random genetic drift in a population

NEET Subjects

Browse all chapters by subject