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