Blood Transfusion Theory paper

Q.1.     The Roar genes are equivalent to the following Fisher-race genes:

a) Dce/dce

b) dce/dce

c) Dce/Dce

d) dce/Dce

e) DCE/Dce


Q.2.     The 1gG is:

a) Monomeric immunoglobulin

b) Pentameric immunoglobulin

c) A Basic structure of an immunoglobulin

d) Dimeric immunoglobulin

e) Trimeric immunoglobulin


Q.3.     The zone where there is complete agglutination of both antigens and antibodies and neither any is in excess is called:

a) Zone of antibody excess

b) Zone of equivalence

c) Zone of antigen excess

d) Zone of antibody-antigen excess

e) Zone of low antigen site


Q.4.     The antibodies that cause hemolysis are called:

a) Agglutinins

b) Haemolysins

c) Haemolysinogen

d) Agglutinogen

e) Precipitanogen


Q.5.     The blood grouping whereby A cells and B cells are used is also known as:

a) Reverse typing

b) Back typing

c) Front typing

d) Forward typing

e) Direct typing


Q.6.     A2 cells react with which of the following anti-serum?

a) Anti A

b) Anti A1

c) Anti A2 B

d) Anti B

e) Anti A1 B


Q.7.     When a universal donor is mated with a universal recipient, what are the possible phenotypes?

a) 0+ve

b) AB-ve

c) A+ve

d) B+ve

e) AB+ve


Q.8.     When allelic genes on the same locus of the chromosome are not alike, they (genes) are said to be:

a) Recessive

b) Co-dominant

c) Homozygous

d) Heterozygous

e) Dominant


Q.9.     The specificity of the antigen is determined by:

a) Polysaccharide portion

b) Amino-acid portion

c) Carboxyl-group

d) Galactosamine

e) Oligosaccharide


Q.10.   The A1 cells react with which of the following antisera strongly?

a) Anti A1

b) Dolichous biflourus

c) Anti B

d) Anti A2 B

e) A1 serum


Q.11.   The blood group B persons consist of two antibodies:

a) Anti A and anti B

b) Anti A and anti A1

c) Anti A and anti H

d) Anti B and anti Ax

e) Anti A and anti A3


Q.12.   The phenotype A1 has specificity to the following antibodies:

a) Anti B

b) Anti A1

c) Anti A

d) Anti A2

e) Anti Ax




Q.13.   The symbol triangle represents which of the following sugars?

a) N-acetylgalactosamine

b) N – acetyl glucosamine

c) L-fucose

d) D-galactose

e) Oligosaccharide


Q.14.   A person of phenotype A2 has either of the following genotypes:

a) A1 A1

b) A2 A2

c) A2 O

d) A1 O

e) A2 B


Q.15.   Blood group AB is determined by the following sugars:

a) D- galactose

b) N-acetyl-glucosamine

c) L-fucose

d) Oligosaccharide

e) N-acetyl galactose


Q.16.   The ABO sub-groups are separated by use of:

a) Anti A

b) Anti B

c) Anti A1

d) Anti H

e) Anti – Ax


Q.17.   The father of blood group B-ve is mated with the mother of blood group O-ve.  What are the possible phenotypes of the offspring?

a) A-ve

b) B-ve

c) B+ve

d) O-ve

e) O+ve


Q.18.   The ABO blood group system was discovered by:

a) Karl Landsteiner

b) Fisher-race

c) Weiner

d) Von-de Castello and Hisozfield

e) Von-Dungein





Q.19.   Enzymes are used in blood transfusion to:

a) Demonstrate ABO antibodies

b) To increase the speed of antigen-antibody reaction

c) To increase the avidity of antibodies especially 1gla class

d) Neutralize antibodies in the ABO blood group system

e) Demonstrate sensitizing antibodies


Q.20.   ABO tube method grouping:

a) Uses 10% cells suspension

b) Uses 4% cells suspension

c) Uses 6% cells suspension

d) Uses 30% cells suspension

e) Uses 20% cells suspension


Q.21.   The papain enzyme is extracted from:

a) Pineapples

b) Fig tree

c) Pawpaw fruits

d) Pancreas

e) Pig stomach


Q.22. The following genes control the Rhesus blood group:

a) A

b) B

c) O

d) D

e) C


Q.23.   Mating of homozygous A and heterozygous B will result with an offspring of the following genotype:

a) AB

b) BO

c) BB

d) AA

e) AO


Q.24.   Which of the following blood groups have two agglutinogens?

a) O

b) A1

c) AB

d) B

e) A2


Q.25.   The following Fisher-race complex antigen DCE and Dce are equivalent to which of the following Weiner antigens?

a) Rhz

b) Rz

c) rh2

d) r2

e) Rho


Q.26.   The following Fisher-race genotype CDE/CdE and Cde/CdE are equivalent to the following Weiner genotype:

a) Rz ry

b) R1 ry

c) Ro r1

d) Rz  Rz

e) Ro R1


Q.27.   The following are buffer solutions used in the Enzyme techniques:

a) Hendry’s buffer solution

b) Sorensen’s phosphate buffer solution

c) Barbitone buffer solution

d) Citrate saline buffer solution

e) Trio-buffer solution


Q.28.   If blood group O serum is mixed with AB cell there will be:

a) No agglutination

b) Agglutination with antibody A and antigen A

c) Agglutination with antibody B and antigen B

d) Agglutination with antibody A and antigen B

e) Antibody A is neutralized by A cells