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Blood Bank ASCP 2025 MOST RECENT COMPREHENSIVE QUESTIONS AND ANSWERS _COMPLETE SOLUTIONS _A+ GRADED _100- CORRECT!!

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Blood Bank ASCP 2025 MOST RECENT COMPREHENSIVE QUESTIONS AND ANSWERS _COMPLETE SOLUTIONS _A+ GRADED _100- CORRECT!!

Institution
Obstetrics /Nursing Course
Course
Obstetrics /Nursing course

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Science Medicine Hematology




Blood Bank ASCP 2025 MOST RECENT
COMPREHENSIVE QUESTIONS AND
ANSWERS |COMPLETE SOLUTIONS |A+
GRADED |100% CORRECT!!
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What type of serological testing phenotyping

does the blood

bank technologist perform when

determining the

blood group of a patient?


If anti-K reacts 3+ with a donor Dosage

cell with a

genotype KK and 2+ with a Kk

cell, the antibody

is demonstrating:


Carla expresses the blood Gender and Race. The frequency of Duffy antigens Fya and Fyb

group antigens Fya, Fyb, and varies

Xga. James shows expressions of with race. The Fy(a−b−) phenotype occurs in almost

none of these antigens. What 70% of African Americans and is very rare in whites.

factor(s) may account for the The Xga antigen is X-linked and, therefore, expressed more

absence of these antigens in frequently in women (who may inherit the antigen from either

James? parent) than in men.

,Which of the following B. An individual with the BB genotype is

statements is true? homozygous for B antigen

A. An individual with the BO

genotype is

homozygous for B antigen

B. An individual with the BB

genotype is

homozygous for B antigen

C. An individual with the OO

genotype is

heterozygous for O antigen

D. An individual with the AB

phenotype is

homozygous for A and B

antigens

See an expert-written answer!




Which genotype is A. DCe/dce

heterozygous for C?

A. DCe/dce

B. DCE/DCE

C. Dce/dce

D. DCE/dCe

See an expert-written answer!




The Bombay phenotype will be expressed only when no H

substance is present. The Oh type is expressed by the genotype

Which genotype(s) will give rise hh. Bombays produce naturally occurring anti-H, and their serum

to the Bombay phenotype? agglutinates group

O red cells in addition to red cells from groups A, B, and AB

persons.


Meiosis in cell division is limited 1N. Meiosis involves two nuclear divisions in succession resulting

to the ova and sperm producing in four gametocytes each containing half the number of

four gametes containing what chromosomes found in somatic cells or 1N.

complement of DNA?

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Interphase, The cell is engaged in metabolic activity.

A cell that is not actively dividing Chromosomes are not clearly discerned; however, nucleoli may

is said to be in: be

visible


Which of the following Codominant

describes the expression of

most blood group antigens?


What blood type is not possible All are possible

for an offspring of an AO and

BO mating?

, The alleged father of a child in a -Indirect/secondary/second order

disputed case of paternity is An indirect/secondary/second order exclusion occurs when a

blood group AB. The mother is genetic marker is absent in the child but should have been

group O and the child is group transmitted by the alleged father. In this case, either A or B

O. What type of exclusion is should be present in the child.

this?


If the frequency of gene Y is 0.4 Linkage disequilibrium.

and the frequency of gene Z is Linkage disequilibrium is a phenomenon in which alleles situated

0.5, one would expect that they in close proximity on a chromosome associate with one another

should occur together 0.2 (20%) more than would be expected from individual allelic frequencies.

of the time. In actuality,

they are found together 32% of

the time. This is an example of:


In this type of inheritance, the Autosomal Dominant

father carries the trait on his X

chromosome. He has no sons

with the trait because he passed

his Y chromosome to his sons;

however, all his daughters will

express the trait.


In the Hardy-Weinberg formula p2 + 2pq + q2, p2 and q2

represent homozygous expressions and 2pq represents
In the Hardy-Weinberg formula,
heterozygous expression. This formula is
p2 represents:
used in population genetics to determine the frequency of

different alleles.


What is the Hardy-Weinberg p2 + 2pq + q2 = 1

formula?


Why do IgM antibodies, such as IgM antibodies are larger molecules and have the ability to bind

those formed against the ABO more antigen

antigens, have the ability to

directly agglutinate red blood

cells (RBCs) and cause visible

agglutination?


Which of the following LISS.

enhancement mediums LISS contains a reduced concentration of NaCl (0.2%) and results

decreases the zeta potential, in a reduction in charged ions within the ionic cloud, decreasing

allowing antibody and antigen the zeta potential and facilitating antigen and antibody

to come closer together? interaction.


Secondary.

An anamnestic response is a secondary immune response in
This type of antibody response
which memory lymphocytes respond rapidly to foreign antigen
is analogous to an anamnestic
in producing specific antibody. The antibodies are IgG and are
antibody reaction.
produced

at lower doses of antigen than in the primary response.


Which antibodies to a In the DAT (direct antiglobulin test), rabbit

component of complement are polyspecific antisera contains both an anti-human IgG

contained in the rabbit component and an antibody against the C3d component of

polyspecific antihuman globulin complement.

reagent for detection of in vivo

sensitization?

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