MNS Blood Group System

Question 1

How many antigens are there in the MNS blood group system

Answer 1

49

Question 2

What are the two genes responsible for the MNS blood group system

Answer 2

1. GYPA
2. GYPB

Question 3

Gene that produces glycophorin A which carries the M and N antigens

Answer 3

GYPA

Question 4

Gene that produces glycophorin B which carries the S and s antigens

Answer 4

GYPB

Question 5

What are the MNS antigens (1-4)

Answer 5

1. M
2. N
3. S
4. s

Question 6

Demonstrates serine and glycine on the 1st and 5th positions respectively

Answer 6

M antigen

Question 8

Demonstrates leucine and glutamic acid on the 1st and 5th positions respectively

Answer 8

N antigen

Question 9

Demonstrates methionine at the 29th position

Answer 9

S antigen

Question 10

Demonstrates threonine at the 29th position

Answer 10

s antigen

Question 11

Lacking all or part of GPA due to exon deletion thus lacking M and N antigens

Answer 11

En a

Question 12

Lacking S, s, and U antigens due to GYPB deletion

Answer 12

S- s- U-

Question 13

Lacking all MNS antigens due to Mk gene

Answer 13

MkMk