Question 1

When the nurse is teaching the staff about X-linked recessive disorders, which information should the nurse include? (Select all that apply.)

Accepted Answer

A)  The trait is seen much more often in females than in males. 
B)  The trait is never transmitted from father to son. 
C)  The gene can be transmitted through a series of carrier females. 
D)  The gene is passed from an affected father to all his daughters. 
E)  The trait never skips generations. 
A)  The trait is seen much more often in females than in males. 
B)  The trait is never transmitted from father to son. 
C)  The gene can be transmitted through a series of carrier females. 
D)  The gene is passed from an affected father to all his daughters. 
E)  The trait never skips generations.

Question 2

A 12-year-old male is diagnosed with Klinefelter's syndrome. His karyotype would reveal which of the following?

Accepted Answer

A)  XY 
B)  XX 
C)  XYY 
D)  XXY 
A)  XY 
B)  XX 
C)  XYY 
D)  XXY

Question 3

A child is diagnosed with cystic fibrosis. History reveals that the child's parents are siblings. Cystic fibrosis was most likely the result of:

Accepted Answer

A)  X-inactivation. 
B)  genomic imprinting. 
C)  consanguinity. 
D)  obligate carriers. 
A)  X-inactivation. 
B)  genomic imprinting. 
C)  consanguinity. 
D)  obligate carriers.

Question 4

After a geneticist talks to a patient about being a chromosomal mosaic, the patient asks the nurse what that means. What should the nurse say?

Accepted Answer

A)  "You are only be a carrier of the genetic disease." 
B)  "You have a mild form of the genetic disease." 
C)  "You have two genetic diseases." 
D)  "The expression of your DNA has been altered, causing a genetic disease." 
A)  "You are only be a carrier of the genetic disease." 
B)  "You have a mild form of the genetic disease." 
C)  "You have two genetic diseases." 
D)  "The expression of your DNA has been altered, causing a genetic disease."

Question 5

A biologist is explaining how RNA directs the synthesis of protein. Which process is the biologist describing?

Accepted Answer

A)  Termination 
B)  Transcription 
C)  Translocation 
D)  Translation 
A)  Termination 
B)  Transcription 
C)  Translocation 
D)  Translation

Question 6

An aide asks the nurse why people who have neurofibromatosis show varying degrees of the disease. Which genetic principle should the nurse explain to the aide?

Accepted Answer

A)  Penetrance 
B)  Expressivity 
C)  Dominance 
D)  Recessiveness 
A)  Penetrance 
B)  Expressivity 
C)  Dominance 
D)  Recessiveness

Question 7

A nurse recalls that the basic components of DNA are:

Accepted Answer

A)  pentose sugars and four phosphate bases. 
B)  a phosphate molecule, deoxyribose, and four nitrogenous bases. 
C)  adenine, guanine, and purine. 
D)  codons, oxygen, and cytosine. 
A)  pentose sugars and four phosphate bases. 
B)  a phosphate molecule, deoxyribose, and four nitrogenous bases. 
C)  adenine, guanine, and purine. 
D)  codons, oxygen, and cytosine.

Question 8

What is the result of homologous chromosomes failing to separate during meiosis?

Accepted Answer

A)  Neurofibromatosis 
B)  Aneuploidy 
C)  Polyploidy 
D)  Conjoined twins 
A)  Neurofibromatosis 
B)  Aneuploidy 
C)  Polyploidy 
D)  Conjoined twins

Question 9

What gene abnormality causes cystic fibrosis?

Accepted Answer

A)  X-linked dominant 
B)  X-linked recessive 
C)  Autosomal dominant 
D)  Autosomal recessive 
A)  X-linked dominant 
B)  X-linked recessive 
C)  Autosomal dominant 
D)  Autosomal recessive

Question 10

What regions of RNA must be spliced out for functional mRNA to be formed?

Accepted Answer

A)  Promoter sites 
B)  Introns 
C)  Exons 
D)  Anticodons 
A)  Promoter sites 
B)  Introns 
C)  Exons 
D)  Anticodons

Question 11

What is a risk factor for Down syndrome?

Accepted Answer

A)  Fetal exposure to mutagens in the uterus 
B)  Increased paternal age 
C)  Family history of Down syndrome 
D)  Pregnancy in women over age 35 
A)  Fetal exposure to mutagens in the uterus 
B)  Increased paternal age 
C)  Family history of Down syndrome 
D)  Pregnancy in women over age 35

Exam 2: Genes and Genetic Diseases

When the nurse is teaching the staff about X-linked recessive disorders, which information should the nurse include? (Select all that apply.)

A 12-year-old male is diagnosed with Klinefelter's syndrome. His karyotype would reveal which of the following?

A child is diagnosed with cystic fibrosis. History reveals that the child's parents are siblings. Cystic fibrosis was most likely the result of:

After a geneticist talks to a patient about being a chromosomal mosaic, the patient asks the nurse what that means. What should the nurse say?

A biologist is explaining how RNA directs the synthesis of protein. Which process is the biologist describing?

An aide asks the nurse why people who have neurofibromatosis show varying degrees of the disease. Which genetic principle should the nurse explain to the aide?

A nurse recalls that the basic components of DNA are:

What is the result of homologous chromosomes failing to separate during meiosis?

What gene abnormality causes cystic fibrosis?

What regions of RNA must be spliced out for functional mRNA to be formed?

What is a risk factor for Down syndrome?

Cellular Biology

Epigenetics and Disease

Altered Cellular and Tissue Biology

Fluids and Electrolytes, Acids and Bases

Innate Immunity: Inflammation and Wound Healing

Adaptive Immunity

Infection and Defects in Mechanisms of Defence

Stress and Disease

Biology of Cancer

Cancer Epidemiology

Cancer in Children and Adolescents

Structure and Function of the Neurological System

Pain, Temperature, Sleep, and Sensory Function

Alterations in Cognitive Systems, Cerebral Hemodynamics, and Motor Function

Disorders of the Central and Peripheral Nervous Systems and Neuromuscular Junction

Alterations of Neurological Function in Children

Mechanisms of Hormonal Regulation

Alterations of Hormonal Regulation

Structure and Function of the Hematological System

Alterations of Hematological Function

Alterations of Hematological Function in Children

Structure and Function of the Cardiovascular and Lymphatic Systems

Alterations of Cardiovascular Function

Alterations of Cardiovascular Function in Children

Structure and Function of the Pulmonary System

Alterations of Pulmonary Function

Alterations of Pulmonary Function in Children

Structure and Function of the Renal and Urological Systems

Alterations of Renal and Urinary Tract Function

Alterations of Renal and Urinary Tract Function in Children

Structure and Function of the Reproductive Systems

Alterations of the Female Reproductive System

Alterations of the Male Reproductive System

Structure and Function of the Digestive System

Alterations of Digestive Function

Alterations of Digestive Function in Children

Structure and Function of the Musculo-Skeletal System

Alterations of Musculo-Skeletal Function

Alterations of Musculo-Skeletal Function in Children

Structure, Function, and Disorders of the Integument

Alterations of the Integument in Children

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