Question 1

"A" is the dominant allele for normal skin color; "a" is recessive for albinism. If a couple were "AA" and "Aa," which of the following statements is not true?

Accepted Answer

A) Both parents have the same phenotype. 
B) Both parents have the same genotype. 
C) They could not have a child with albinism. 
D) All of the above are true statements. 
A) Both parents have the same phenotype. 
B) Both parents have the same genotype. 
C) They could not have a child with albinism. 
D) All of the above are true statements.

Question 2

All of the following diseases demonstrate single-gene inheritance and are autosomal recessive except:

Accepted Answer

A) Tay-Sachs disease. 
B) total albinism. 
C) Huntington disease. 
D) severe combined immune deficiency (SCI
D) . 
A) Tay-Sachs disease. 
B) total albinism. 
C) Huntington disease. 
D) severe combined immune deficiency (SCI
D) .

Question 3

Match each of the terms with its corresponding definition.
-Genotype with two different genes for one trait

Accepted Answer

A) Recessive 
B) Codominance 
C) Monosomy 
D) Autosome 
E) Karyotype
F)Sex-linked trait
G)Dominant
H)Trisomy
I)Punnett square
J)Genome
K)Sex chromosome
L)Heterozygous
M)Homozygous
N)Genetics 
A) Recessive 
B) Codominance 
C) Monosomy 
D) Autosome 
E) Karyotype
F)Sex-linked trait
G)Dominant
H)Trisomy
I)Punnett square
J)Genome
K)Sex chromosome
L)Heterozygous
M)Homozygous
N)Genetics

Question 4

Explain how the regulation of enzyme production can regulate cell activity.

Accepted Answer

Enzymes are essential for carrying out v

Question 5

The sickle cell/malaria relationship demonstrates the concept in medical genetics that "disease" genes:

Accepted Answer

A) are always codominant. 
B) are never dominant. 
C) often provide some biological advantage for a human population in certain circumstances. 
D) never provide a biological advantage for human populations. 
A) are always codominant. 
B) are never dominant. 
C) often provide some biological advantage for a human population in certain circumstances. 
D) never provide a biological advantage for human populations.

Question 6

Nondisjunction results in gametes that produce trisomy but not monosomy in the cells of offspring.

Accepted Answer

A) True 
 B)False

Question 7

If a karyotype found an X chromosome, a Y chromosome, and three 21st chromosomes, it would indicate a _____ syndrome.

Accepted Answer

A) female with Down 
B) female with Turner 
C) male with Klinefelter 
D) male with Down 
A) female with Down 
B) female with Turner 
C) male with Klinefelter 
D) male with Down

Question 8

RNA interference, or iRNA, is being studied as a way to treat genetic disorders.

Accepted Answer

A) True 
 B)False

Question 9

By restricting fat intake, persons with Tay-Sachs disease can successfully manage the disease.

Accepted Answer

A) True 
 B)False

Question 10

A missing part of the q-arm of the Y chromosome may cause an inherited problem with spermatogenesis and possible infertility.

Accepted Answer

A) True 
 B)False

Question 11

What is codominance? Give an example of this phenomenon in your explanation.

Accepted Answer

Codominance is a genetic phenomenon wher

Question 12

Match each of the terms with its corresponding definition.
-Presence of only one autosome of a pair

Accepted Answer

A) Recessive 
B) Codominance 
C) Monosomy 
D) Autosome 
E) Karyotype
F)Sex-linked trait
G)Dominant
H)Trisomy
I)Punnett square
J)Genome
K)Sex chromosome
L)Heterozygous
M)Homozygous
N)Genetics 
A) Recessive 
B) Codominance 
C) Monosomy 
D) Autosome 
E) Karyotype
F)Sex-linked trait
G)Dominant
H)Trisomy
I)Punnett square
J)Genome
K)Sex chromosome
L)Heterozygous
M)Homozygous
N)Genetics

Question 13

If a pedigree tracing the albinism trait showed a square that was filled in, it would indicate a:

Accepted Answer

A) female had albinism. 
B) male had albinism. 
C) female had normal skin color. 
D) male was a carrier for albinism. 
A) female had albinism. 
B) male had albinism. 
C) female had normal skin color. 
D) male was a carrier for albinism.

Question 14

Cystic fibrosis commonly occurs among all ethnic groups.

Accepted Answer

A) True 
 B)False

Question 15

Match each of the terms with its corresponding definition.
-Genes that have effects that always appears in the offspring

Accepted Answer

A) Recessive 
B) Codominance 
C) Monosomy 
D) Autosome 
E) Karyotype
F)Sex-linked trait
G)Dominant
H)Trisomy
I)Punnett square
J)Genome
K)Sex chromosome
L)Heterozygous
M)Homozygous
N)Genetics 
A) Recessive 
B) Codominance 
C) Monosomy 
D) Autosome 
E) Karyotype
F)Sex-linked trait
G)Dominant
H)Trisomy
I)Punnett square
J)Genome
K)Sex chromosome
L)Heterozygous
M)Homozygous
N)Genetics

Question 16

The process of mitosis in humans produces gametes that contain only 23 chromosomes.

Accepted Answer

A) True 
 B)False

Question 17

Crossing over is the process during which:

Accepted Answer

A) similar gametes fuse together. 
B) dissimilar gametes fuse together. 
C) meiosis stops after meiosis I. 
D) pairs of matching chromosomes line up along the equator of the cell and exchange genes with one another. 
A) similar gametes fuse together. 
B) dissimilar gametes fuse together. 
C) meiosis stops after meiosis I. 
D) pairs of matching chromosomes line up along the equator of the cell and exchange genes with one another.

Question 18

The use of a karyotype would be helpful in determining the possibility of what type of genetic condition? The use of a pedigree would be helpful in determining the possibility of what type of genetic condition?

Accepted Answer

A karyotype is a visual representation o

Question 19

Describe three types of gene therapy that may be used to treat a genetic disorder.

Accepted Answer

1. Gene replacement therapy: This involv

Question 20

Homozygous refers to a trait that is determined by a single gene pair.

Accepted Answer

A) True 
 B)False

Exam 48: Genetics and Heredity

"A" is the dominant allele for normal skin color; "a" is recessive for albinism. If a couple were "AA" and "Aa," which of the following statements is not true?

All of the following diseases demonstrate single-gene inheritance and are autosomal recessive except:

Match each of the terms with its corresponding definition. -Genotype with two different genes for one trait

Explain how the regulation of enzyme production can regulate cell activity.

The sickle cell/malaria relationship demonstrates the concept in medical genetics that "disease" genes:

Nondisjunction results in gametes that produce trisomy but not monosomy in the cells of offspring.

If a karyotype found an X chromosome, a Y chromosome, and three 21st chromosomes, it would indicate a _____ syndrome.

RNA interference, or iRNA, is being studied as a way to treat genetic disorders.

By restricting fat intake, persons with Tay-Sachs disease can successfully manage the disease.

A missing part of the q-arm of the Y chromosome may cause an inherited problem with spermatogenesis and possible infertility.

What is codominance? Give an example of this phenomenon in your explanation.

Match each of the terms with its corresponding definition. -Presence of only one autosome of a pair

If a pedigree tracing the albinism trait showed a square that was filled in, it would indicate a:

Cystic fibrosis commonly occurs among all ethnic groups.

Match each of the terms with its corresponding definition. -Genes that have effects that always appears in the offspring

The process of mitosis in humans produces gametes that contain only 23 chromosomes.

Crossing over is the process during which:

The use of a karyotype would be helpful in determining the possibility of what type of genetic condition? The use of a pedigree would be helpful in determining the possibility of what type of genetic condition?

Describe three types of gene therapy that may be used to treat a genetic disorder.

Homozygous refers to a trait that is determined by a single gene pair.

Organization of the Body

Homeostasis

Chemistry of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

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Axial Skeleton

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Articulations

Axial Muscles

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Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

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Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange Transport

Upper Digestive Tract

Lower Digestive Tract

Digestion and Absorption

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

Female Reproductive System

Growth, Development, and Aging

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