1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Sickle-cell anemia is :
A
Caused by substitute of valine by glutamic acid in the beta globin chain of haemoglobin
B
An autosomal linked dominant trait
C
Caused by a change in a single base pair of DNA
D
Characterized by elongated sickle like RBCs with a nucleus
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Semi-conservative replication of DNA was first demonstrated in :
A
Drosophila melanogaster
B
Streptococcus pneumoniae
C
Salmonella typhimurium
D
Escherichia coli
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
Peripatus is a connecting link between :
A
Ctenophora and Platyhelminthes
B
Mollusca and Echinodermata
C
Coelenterata and Porifera
D
Annelida and Arthropoda