Blood Bank Exam 1: CH1-4
Platelets are transfused to play which role in hemostasis?
All of the above
Which of the following best describes the process of mitosis
Cell division that produces two daughter cells having the same number of chromosomes as the parent
All of the following processes occur in replication except
DNA polymerase acts on the 3' to 5' parent strand to produce an anticomplimentary duplicate strand
All of the following are consistent with the "Shift to the right" of the hemoglobin oxygen dissociation curve EXCEPT
Decreased 2,3-DPG
What is the normal life span of an RBC
120 Days
How many chromosomes do somatic cells of humans have?
46
What is the correct biochemical composition of the RBC membrane?
52% protein, 40% lipid, 8% Carbohydrate
How many chromosomes of gamete cells of humans have?
23
Which metabolic pathway is responsible for generating 90% of the ATP for the RBC?
Glycolysis
The condition where one chromosome has a copy of the gene and the other chromosome has that gene detected or absent is referred to as
Hemizygous
What is the primary function of hemoglobin
Oxygen transport
What factors are known to influence platelet metabolism and function?
All of the above
Which of the following is licensed additive solutions approved for the storage of RBCs for 42 days?
All of the above
Alternate forms of a gene that can occur at a single chromosome locus are referred to as:
Alleles
What does the term autologus transfusion refer to?
An individual donating blood for his or her own transfusion
How is it genetically possible for a child to type Rh-Negative?
Both parents are Dd
In the MN blood group system a person who inherits an "M" allele and an "N" allele expresses both M and N antigens on the RBCs. which of the following is true?
M and N are codominant alleles
The RBC membrane is relatively permeable to all of the following except
Sodium
Which of the following rbc morphologies may be present on the peripheral blood smear as a result of loss of rbc membrane?
Spherocytes
A triple set of nucleotides is a
codon
A structural alteration of DNA in an organism that is caused by a physical or chemical agent is called
mutation
Name the main lipid components of the rbc membrane
phospholypid
What is meant by the term autosomal
trait is not carried on the sex chromosomes
In mendel's law of separation, the first-filial generaton is
Heterozygous
Which of the following best describes the structure of human chromosome?
Linear strands of DNA wound around histones
When an individual is said to have blood group A, it refers to the individual's
Phenotype
All of the following areas of rbc biology are crucial for normal erythrocyte survival except
Site of the ABO antigen attachment