
Kell Kidd Duffy
Authored by Jen M
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University
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77 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 'High-Frequency antigen' is defined as:
an antigen that is present in less than 1% of the population.
an antigen that is present in more than 90% of the population.
an antigen that is present in 50% of the population.
an antigen that is present in 10% of the population.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 'low frequency antigen' is defined as:
an antigen that is rarely found in the population.
an antigen that is commonly found in the population.
an antigen that is found only in specific species.
an antigen that is found in all individuals.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Heterozygous is defined as:
having identical alleles for a single trait
having different alleles for a single trait
having no alleles for a single trait
having multiple alleles for multiple traits
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Define the term 'homozygous'.
Homozygous refers to having two identical alleles for a particular gene.
Homozygous refers to having two different alleles for a particular gene.
Homozygous refers to having more than two alleles for a particular gene.
Homozygous refers to having no alleles for a particular gene.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Discuss the concept of 'dosage' in terms of antibody reactivity and RBC phenotype.
'Dosage' refers to the variation in antibody reactivity depending on the number of antigen sites on RBCs.
'Dosage' is the measurement of antibody concentration in the blood.
'Dosage' is the process of determining the blood type of an individual.
'Dosage' is the method of administering antibodies to patients.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For Duffy, Kidd and Kell blood groups, describe the antigen expression on fetal cells.
Duffy antigens are expressed, Kidd and Kell are not.
Kidd antigens are expressed, Duffy and Kell are not.
Kell antigens are expressed, Duffy and Kidd are not.
None of the antigens are expressed.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For Duffy, Kidd and Kell blood groups, describe the antibody characteristics in terms of typical serologic behavior, effects of enhancement media, clinical significance, immunoglobulin class, ability to bind complement, reaction with enzyme treated RBCs.
Duffy antibodies are typically IgG and do not bind complement, Kidd antibodies are often IgG and can bind complement, Kell antibodies are IgG and do not bind complement.
Duffy antibodies are typically IgM and bind complement, Kidd antibodies are often IgM and do not bind complement, Kell antibodies are IgM and bind complement.
Duffy antibodies are typically IgA and bind complement, Kidd antibodies are often IgA and do not bind complement, Kell antibodies are IgA and bind complement.
Duffy antibodies are typically IgE and do not bind complement, Kidd antibodies are often IgE and can bind complement, Kell antibodies are IgE and do not bind complement.
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