Stuvia.com - The Marketplace to Buy and Sell your Study
ss ss ss ss ss ss ss ss ss
Material
Test Bank For Genetics A Conceptual Approach 7th Edition By: Benja
ss ss ss ss ss ss ss ss ss ss
min A. Pierce ss ss
, Stuvia.com - The Marketplace to Buy and Sell your Study ss ss ss ss ss ss ss ss ss
Material
Chapter 1: Introduction to Genetics from Genetics: A Conceptual Approach
ss ss ss ss ss ss ss ss ss
1. Which of the following best defines genetics?
ss ss ss ss ss ss
A) The study of living organisms ss ss ss ss
B) The study of genes and heredity
ss ss s s ss s s
C) The study of diseases and their causes
ss ss s s ss s s ss
D) The study of cell structures ss ss s s ss
Correct Answer: B) The study of genes and heredity
ss ss ss ss ss s s ss s s
Rationale: Genetics focuses specifically on how traits and characteristics are inherited t
ss ss ss ss ss ss ss ss ss ss ss
hrough genes. This foundational knowledge is crucial for understanding more complex g
ss ss ss ss ss ss ss ss ss ss ss ss
enetic concepts. Understanding genetics is essential for nurses, as they may deal with g
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
enetic conditions and counseling.
ss ss ss ss
2. Which term describes the observable characteristics of an organism?
ss ss ss ss ss ss ss ss
A) Genotype
B) Phenotype
C) Allele
D) Chromosome
Correct Answer: B) Phenotype ss ss ss
Rationale: The phenotype refers to the physical expression of genetic traits, while geno
ss ss ss ss ss ss ss ss ss ss ss ss
type refers to the genetic makeup. Nurses must be able to differentiate between these ter
ss ss ss ss ss ss ss ss ss ss ss ss ss ss ss
ms to provide effective education and support to patients regarding genetic
ss ss ss ss ss s s s s s s ss ss s s
conditions.
ss
3. What is the primary function of DNA?
ss ss ss ss ss ss
A) To provide energy for cellular processes
ss ss ss ss ss
B) To store and transmit genetic information
ss ss ss ss ss
C) To catalyze biochemical reactions
ss ss ss
D) To serve as a structural component of cells
ss ss ss ss ss ss ss
Correct Answer: B) To store and transmit genetic information
ss ss ss ss ss s s ss ss
Rationale: DNA holds the instructions for the development and functioning of living organ
ss ss ss ss ss ss ss ss ss ss ss ss
isms, which is central to genetic studies. Understanding the role of DNA is vital for nurses,
ss ss ss ss ss ss ss ss ss ss ss ss ss ss ss ss
especially when discussing genetic testing and counseling.
ss ss ss ss ss ss ss
4. Which of the following best describes alleles?
ss ss ss ss ss ss
A) Different forms of a gene s s ss s s ss
B) The same form of a gene ss ss ss ss ss
C) Chromosomes that determine sex ss ss ss
D) Cells that contain genetic material ss ss ss ss
Correct Answer: A) Different forms of a gene
ss ss ss s s ss s s ss
Rationale: Alleles represent variations of a particular gene, contributing to genetic dive
ss ss ss ss ss ss ss ss ss ss ss
rsity. Nurses must understand alleles to help explain inheritance patterns and genetic dis
ss ss ss ss ss ss ss ss ss ss ss ss ss
orders to patients.
ss ss ss
5. If a person has two identicalwalleles for a trait, they are considered:
ss ss ss ss ss ss ss ss ss ss ss
A) Homozygous
B) Heterozygous
C) Dominant
D) Recessive
, Stuvia.com - The Marketplace to Buy and Sell your Study ss ss ss ss ss ss ss ss ss
Material
Correct Answer: A) Homozygous ss ss ss
Rationale: Homozygous individuals have two copies of the same allele, while heterozy
ss ss ss ss ss ss ss ss ss ss ss
gous individuals have different alleles. This distinction is essential in genetics, as it influ
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
ences the expression of traits and the risk of genetic disorders.
ss ss ss ss ss ss s s ss ss ss ss
6. What is a gene? ss ss ss
A) A segment of DNA that codes for a protein
s s s s s s s s s s ss ss ss
B) The physical location of chromosomes
ss ss ss ss
C) The complete set of DNA in an organism
ss ss ss ss ss ss ss
D) A structure that carries nutrients in cells
ss ss ss ss ss ss
Correct Answer: A) A segment of DNA that codes for a protein
ss ss ss s s s s s s s s s s ss ss ss
Rationale: Genes are the basic units of heredity and are crucial for producing proteins t
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
hat carry out various functions in the body. Understanding gene function is essential for
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
nurses to assess genetic risks and provide appropriate patient education.
ss ss ss ss ss ss ss ss ss ss
7. Which genetic disorder is caused by a single gene mutation?
ss ss ss ss ss ss ss ss ss
A) Cystic fibrosis ss
B) Down syndrome s s
C) Turner syndrome ss
D) Hemophilia
Correct Answer: A) Cystic fibrosis ss ss ss ss
Rationale: Cystic fibrosis is an autosomal recessive disorder resulting fromwmutations i
ss ss ss ss ss ss ss ss ss ss
s n the CFTR gene, illustrating Mendelian inheritance patterns. Recognizing such
s ss ss ss ss ss ss ss ss ss
disorde rs allows nurses to provide better care and management strategies for affected
ss s s ss ss ss ss ss ss ss ss ss ss ss
individua ls.
ss ss
8. In Mendelian inheritance, what is the expected phenotypic ratio of a monohybri
ss ss ss ss ss ss ss ss ss ss ss
d cross?
ss ss
A) 1:1
B) 3:1
C) 9:3:3:1
D) 1:2:1
Correct Answer: B) 3:1 ss ss ss
Rationale: A monohybrid cross typically results in a 3:1 ratio of dominant to recessive
ss ss ss ss ss ss ss ss ss ss ss ss ss
phenotypes. This knowledge is important for nurses involved in genetic counseling, as it
ss ss ss ss ss ss ss ss ss ss ss ss ss
helps explain inheritance patterns to families.
ss ss ss ss ss ss
9. Which of the following represents a carrier for a recessive genetic disorder?
ss ss ss ss ss ss ss ss ss ss ss
A) AA
B) Aa
C) aa
D) None of the above ss s s ss
Correct Answer: B) Aa ss ss ss
Rationale: A carrier has one dominant and one recessive allele, showing no
ss s s ss ss ss s s s s ss ss ss ss
symptoms of the disorder but capable of passing the recessive allele to offspring.
ss ss ss ss ss ss ss ss ss ss ss ss ss
Understanding ca rriers is vital in genetic counseling and assessing family risks.
ss ss ss ss ss ss ss ss ss ss ss ss
10. What is the significance of the human genome project?
ss ss ss ss ss ss ss ss
A) To clone human genes ss ss ss
B) To map the entire human genome
ss ss ss ss ss
C) To identify genetic disorders only
ss ss ss ss
D) To enhance agricultural crops
ss ss ss
, Stuvia.com - The Marketplace to Buy and Sell your Study ss ss ss ss ss ss ss ss ss
Material
Correct Answer: B) To map the entire human genomess ss ss ss ss ss ss ss
Rationale: The Human Genome Project aimed to sequence and understand all the genes
ss ss ss ss ss ss ss ss ss ss ss ss
ssof the human species, which has vast implications for medicine and genetics. Nurses sh
ss ss ss ss ss ss ss ss ss ss ss ss ss
ssould be aware of this project as it informs genetic testing and treatment options.
s s ss ss s s ss s s ss s s ss ss ss s s s s
11. Which of the following is an example of a dominant trait?
ss ss ss ss ss ss ss ss ss ss
A) Blue eyes ss
B) Blood type O s s ss
C) Hitchhiker's thumb ss
D) Cystic fibrosis ss
Correct Answer: C) Hitchhiker's thumb ss ss ss ss
Rationale: Hitchhiker's thumb is a dominant trait; the others are either recessive or bloo
ss ss ss ss ss ss ss ss ss ss ss ss ss
s sd types determined by codominance. Understanding dominant traits is crucial for nurses
ss ss ss ss ss ss ss ss ss ss ss
sswhen discussing genetic inheritance with patients.
ss ss ss ss ss
12. In a pedigree chart, a filled symbol typically represents which of the following?
ss ss ss ss ss ss ss ss ss ss ss ss
A) Carrier
B) Affected individual s s
C) Male
D) Female
Correct Answer: B) Affected individual ss ss ss s s
Rationale: Filled symbols in a pedigree indicate individuals expressing a particular trait
ss ss ss ss ss ss ss ss ss ss ss
ssor condition being studied. Knowledge of pedigree charts is essential for nurses assessi
ss ss ss ss ss s s ss ss ss ss ss ss
ssng family histories and genetic risks.
ss ss ss ss ss
13. Which of the following is true regarding sex-linked traits?
ss ss ss ss ss ss ss ss
A) They are inherited equally by males and females.
ss ss ss ss ss ss ss
B) They are always expressed in males. ss ss ss ss ss
C) They are only found on the Y chromosome. ss ss ss s s ss ss ss
D) They are typically more common in males than females.
ss ss ss ss ss ss ss ss
Correct Answer: D) They are typically more common in males than females. Ration
ss ss ss ss ss ss ss ss ss ss ss ss
ssale: Sex- ss
linked traits are often carried on the X chromosome, leading to higher expression in m
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
ssales, who have only one X chromosome. Nurses should understand sex-
ss ss ss ss ss ss ss ss s s s s
linked inheritance patterns for effective genetic counseling.
s s ss ss ss ss ss
14. What is the role of messenger RNA (mRNA) in protein synthesis?
ss ss ss ss ss ss ss ss ss ss
A) It catalyzes the formation of proteins.
s s ss ss ss s s
B) It carries genetic information fromwDNA to ribosomes.
ss ss ss ss ss ss
C) It helps in DNA replication.
s s ss ss s s
D) It protects DNA from degradation.
s s ss s s ss
Correct Answer: B) It carries genetic information from DNA to ribosomes.
ss ss ss s s ss ss ss ss ss ss
Rationale: mRNA is crucial for translating genetic information into proteins, functionin
ss ss ss ss ss ss ss ss ss ss
ssg as a template for protein synthesis. Understanding mRNA's role aids nurses in discuss
ss ss ss ss ss ss ss ss ss ss ss ss ss
ssing genetic therapies and treatments.
ss ss ss ss
15. Which term describes an organism's genetic makeup?
ss ss ss ss ss ss
A) Phenotype
B) Genotype
C) Allele
D) Trait
Correct Answer: B) Genotype ss ss ss
ss ss ss ss ss ss ss ss ss
Material
Test Bank For Genetics A Conceptual Approach 7th Edition By: Benja
ss ss ss ss ss ss ss ss ss ss
min A. Pierce ss ss
, Stuvia.com - The Marketplace to Buy and Sell your Study ss ss ss ss ss ss ss ss ss
Material
Chapter 1: Introduction to Genetics from Genetics: A Conceptual Approach
ss ss ss ss ss ss ss ss ss
1. Which of the following best defines genetics?
ss ss ss ss ss ss
A) The study of living organisms ss ss ss ss
B) The study of genes and heredity
ss ss s s ss s s
C) The study of diseases and their causes
ss ss s s ss s s ss
D) The study of cell structures ss ss s s ss
Correct Answer: B) The study of genes and heredity
ss ss ss ss ss s s ss s s
Rationale: Genetics focuses specifically on how traits and characteristics are inherited t
ss ss ss ss ss ss ss ss ss ss ss
hrough genes. This foundational knowledge is crucial for understanding more complex g
ss ss ss ss ss ss ss ss ss ss ss ss
enetic concepts. Understanding genetics is essential for nurses, as they may deal with g
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
enetic conditions and counseling.
ss ss ss ss
2. Which term describes the observable characteristics of an organism?
ss ss ss ss ss ss ss ss
A) Genotype
B) Phenotype
C) Allele
D) Chromosome
Correct Answer: B) Phenotype ss ss ss
Rationale: The phenotype refers to the physical expression of genetic traits, while geno
ss ss ss ss ss ss ss ss ss ss ss ss
type refers to the genetic makeup. Nurses must be able to differentiate between these ter
ss ss ss ss ss ss ss ss ss ss ss ss ss ss ss
ms to provide effective education and support to patients regarding genetic
ss ss ss ss ss s s s s s s ss ss s s
conditions.
ss
3. What is the primary function of DNA?
ss ss ss ss ss ss
A) To provide energy for cellular processes
ss ss ss ss ss
B) To store and transmit genetic information
ss ss ss ss ss
C) To catalyze biochemical reactions
ss ss ss
D) To serve as a structural component of cells
ss ss ss ss ss ss ss
Correct Answer: B) To store and transmit genetic information
ss ss ss ss ss s s ss ss
Rationale: DNA holds the instructions for the development and functioning of living organ
ss ss ss ss ss ss ss ss ss ss ss ss
isms, which is central to genetic studies. Understanding the role of DNA is vital for nurses,
ss ss ss ss ss ss ss ss ss ss ss ss ss ss ss ss
especially when discussing genetic testing and counseling.
ss ss ss ss ss ss ss
4. Which of the following best describes alleles?
ss ss ss ss ss ss
A) Different forms of a gene s s ss s s ss
B) The same form of a gene ss ss ss ss ss
C) Chromosomes that determine sex ss ss ss
D) Cells that contain genetic material ss ss ss ss
Correct Answer: A) Different forms of a gene
ss ss ss s s ss s s ss
Rationale: Alleles represent variations of a particular gene, contributing to genetic dive
ss ss ss ss ss ss ss ss ss ss ss
rsity. Nurses must understand alleles to help explain inheritance patterns and genetic dis
ss ss ss ss ss ss ss ss ss ss ss ss ss
orders to patients.
ss ss ss
5. If a person has two identicalwalleles for a trait, they are considered:
ss ss ss ss ss ss ss ss ss ss ss
A) Homozygous
B) Heterozygous
C) Dominant
D) Recessive
, Stuvia.com - The Marketplace to Buy and Sell your Study ss ss ss ss ss ss ss ss ss
Material
Correct Answer: A) Homozygous ss ss ss
Rationale: Homozygous individuals have two copies of the same allele, while heterozy
ss ss ss ss ss ss ss ss ss ss ss
gous individuals have different alleles. This distinction is essential in genetics, as it influ
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
ences the expression of traits and the risk of genetic disorders.
ss ss ss ss ss ss s s ss ss ss ss
6. What is a gene? ss ss ss
A) A segment of DNA that codes for a protein
s s s s s s s s s s ss ss ss
B) The physical location of chromosomes
ss ss ss ss
C) The complete set of DNA in an organism
ss ss ss ss ss ss ss
D) A structure that carries nutrients in cells
ss ss ss ss ss ss
Correct Answer: A) A segment of DNA that codes for a protein
ss ss ss s s s s s s s s s s ss ss ss
Rationale: Genes are the basic units of heredity and are crucial for producing proteins t
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
hat carry out various functions in the body. Understanding gene function is essential for
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
nurses to assess genetic risks and provide appropriate patient education.
ss ss ss ss ss ss ss ss ss ss
7. Which genetic disorder is caused by a single gene mutation?
ss ss ss ss ss ss ss ss ss
A) Cystic fibrosis ss
B) Down syndrome s s
C) Turner syndrome ss
D) Hemophilia
Correct Answer: A) Cystic fibrosis ss ss ss ss
Rationale: Cystic fibrosis is an autosomal recessive disorder resulting fromwmutations i
ss ss ss ss ss ss ss ss ss ss
s n the CFTR gene, illustrating Mendelian inheritance patterns. Recognizing such
s ss ss ss ss ss ss ss ss ss
disorde rs allows nurses to provide better care and management strategies for affected
ss s s ss ss ss ss ss ss ss ss ss ss ss
individua ls.
ss ss
8. In Mendelian inheritance, what is the expected phenotypic ratio of a monohybri
ss ss ss ss ss ss ss ss ss ss ss
d cross?
ss ss
A) 1:1
B) 3:1
C) 9:3:3:1
D) 1:2:1
Correct Answer: B) 3:1 ss ss ss
Rationale: A monohybrid cross typically results in a 3:1 ratio of dominant to recessive
ss ss ss ss ss ss ss ss ss ss ss ss ss
phenotypes. This knowledge is important for nurses involved in genetic counseling, as it
ss ss ss ss ss ss ss ss ss ss ss ss ss
helps explain inheritance patterns to families.
ss ss ss ss ss ss
9. Which of the following represents a carrier for a recessive genetic disorder?
ss ss ss ss ss ss ss ss ss ss ss
A) AA
B) Aa
C) aa
D) None of the above ss s s ss
Correct Answer: B) Aa ss ss ss
Rationale: A carrier has one dominant and one recessive allele, showing no
ss s s ss ss ss s s s s ss ss ss ss
symptoms of the disorder but capable of passing the recessive allele to offspring.
ss ss ss ss ss ss ss ss ss ss ss ss ss
Understanding ca rriers is vital in genetic counseling and assessing family risks.
ss ss ss ss ss ss ss ss ss ss ss ss
10. What is the significance of the human genome project?
ss ss ss ss ss ss ss ss
A) To clone human genes ss ss ss
B) To map the entire human genome
ss ss ss ss ss
C) To identify genetic disorders only
ss ss ss ss
D) To enhance agricultural crops
ss ss ss
, Stuvia.com - The Marketplace to Buy and Sell your Study ss ss ss ss ss ss ss ss ss
Material
Correct Answer: B) To map the entire human genomess ss ss ss ss ss ss ss
Rationale: The Human Genome Project aimed to sequence and understand all the genes
ss ss ss ss ss ss ss ss ss ss ss ss
ssof the human species, which has vast implications for medicine and genetics. Nurses sh
ss ss ss ss ss ss ss ss ss ss ss ss ss
ssould be aware of this project as it informs genetic testing and treatment options.
s s ss ss s s ss s s ss s s ss ss ss s s s s
11. Which of the following is an example of a dominant trait?
ss ss ss ss ss ss ss ss ss ss
A) Blue eyes ss
B) Blood type O s s ss
C) Hitchhiker's thumb ss
D) Cystic fibrosis ss
Correct Answer: C) Hitchhiker's thumb ss ss ss ss
Rationale: Hitchhiker's thumb is a dominant trait; the others are either recessive or bloo
ss ss ss ss ss ss ss ss ss ss ss ss ss
s sd types determined by codominance. Understanding dominant traits is crucial for nurses
ss ss ss ss ss ss ss ss ss ss ss
sswhen discussing genetic inheritance with patients.
ss ss ss ss ss
12. In a pedigree chart, a filled symbol typically represents which of the following?
ss ss ss ss ss ss ss ss ss ss ss ss
A) Carrier
B) Affected individual s s
C) Male
D) Female
Correct Answer: B) Affected individual ss ss ss s s
Rationale: Filled symbols in a pedigree indicate individuals expressing a particular trait
ss ss ss ss ss ss ss ss ss ss ss
ssor condition being studied. Knowledge of pedigree charts is essential for nurses assessi
ss ss ss ss ss s s ss ss ss ss ss ss
ssng family histories and genetic risks.
ss ss ss ss ss
13. Which of the following is true regarding sex-linked traits?
ss ss ss ss ss ss ss ss
A) They are inherited equally by males and females.
ss ss ss ss ss ss ss
B) They are always expressed in males. ss ss ss ss ss
C) They are only found on the Y chromosome. ss ss ss s s ss ss ss
D) They are typically more common in males than females.
ss ss ss ss ss ss ss ss
Correct Answer: D) They are typically more common in males than females. Ration
ss ss ss ss ss ss ss ss ss ss ss ss
ssale: Sex- ss
linked traits are often carried on the X chromosome, leading to higher expression in m
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
ssales, who have only one X chromosome. Nurses should understand sex-
ss ss ss ss ss ss ss ss s s s s
linked inheritance patterns for effective genetic counseling.
s s ss ss ss ss ss
14. What is the role of messenger RNA (mRNA) in protein synthesis?
ss ss ss ss ss ss ss ss ss ss
A) It catalyzes the formation of proteins.
s s ss ss ss s s
B) It carries genetic information fromwDNA to ribosomes.
ss ss ss ss ss ss
C) It helps in DNA replication.
s s ss ss s s
D) It protects DNA from degradation.
s s ss s s ss
Correct Answer: B) It carries genetic information from DNA to ribosomes.
ss ss ss s s ss ss ss ss ss ss
Rationale: mRNA is crucial for translating genetic information into proteins, functionin
ss ss ss ss ss ss ss ss ss ss
ssg as a template for protein synthesis. Understanding mRNA's role aids nurses in discuss
ss ss ss ss ss ss ss ss ss ss ss ss ss
ssing genetic therapies and treatments.
ss ss ss ss
15. Which term describes an organism's genetic makeup?
ss ss ss ss ss ss
A) Phenotype
B) Genotype
C) Allele
D) Trait
Correct Answer: B) Genotype ss ss ss
