Question 1

The subunits of chromatin wound around a histone protein is called a:

Accepted Answer

A) gene. 
B) chromosome. 
C) nucleosome. 
D) nucleotide. 
A) gene. 
B) chromosome. 
C) nucleosome. 
D) nucleotide.

Question 2

Match each of the terms with its corresponding definition.
-Triplet of autosomes resulting from a mistake in meiosis

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 3

Match each of the terms with its corresponding definition.
-The scientific study of inheritance

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

If "A" stands for the dominant gene that prevents albinism and "a" stands for the recessive albinism trait, then an individual with the genotype of "aa" will express:

Accepted Answer

A) albinism and will be a carrier. 
B) albinism and will not be a carrier. 
C) normal pigmentation and will be a carrier. 
D) normal pigmentation and will not be a carrier. 
A) albinism and will be a carrier. 
B) albinism and will not be a carrier. 
C) normal pigmentation and will be a carrier. 
D) normal pigmentation and will not be a carrier.

Question 5

Which of the following statements is not true of mitochondrial DNA?

Accepted Answer

A) The DNA is in the form of a circle. 
B) The usual "stop" code in nuclear DNA codes for an amino acid in mitochondrial DNA. 
C) The mitochondrial DNA in the zygote comes only from the mother. 
D) All of the above statements are true of mitochondrial DNA. 
A) The DNA is in the form of a circle. 
B) The usual "stop" code in nuclear DNA codes for an amino acid in mitochondrial DNA. 
C) The mitochondrial DNA in the zygote comes only from the mother. 
D) All of the above statements are true of mitochondrial DNA.

Question 6

In human blood type, types A and B are codominant, producing type AB. They are both dominant to the recessive O type. Which of the following parental genotypes could produce a child with type O blood?

Accepted Answer

A) AB x AO 
B) AO x BO 
C) AO x BB 
D) None of the above genotypes can produce a type O offspring. 
A) AB x AO 
B) AO x BO 
C) AO x BB 
D) None of the above genotypes can produce a type O offspring.

Question 7

What is mitochondrial inheritance? Why does it only involve the mother and what type of diseases or deficiencies are caused by mitochondrial genes?

Accepted Answer

Mitochondrial inheritance refers to the

Question 8

Because there have been tragic setbacks is some gene therapy clinical trials, there are presently no approved gene therapies available.

Accepted Answer

A) True 
 B)False

Question 9

After age 35, a mother's chances of producing a trisomic child increase dramatically.

Accepted Answer

A) True 
 B)False

Question 10

Osteogenesis imperfecta is a recessive disorder of connective tissues.

Accepted Answer

A) True 
 B)False

Question 11

The proteome is to proteins in the cell what the genome is to the DNA in the cell.

Accepted Answer

A) True 
 B)False

Question 12

Match each of the terms with its corresponding definition.
-Pair of chromosomes in the human genome that determine sex

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

Which of the following diseases is not a single-gene recessive trait?

Accepted Answer

A) Huntington disease 
B) Tay-Sachs disease 
C) PKU 
D) All of the above are single-gene recessive traits. 
A) Huntington disease 
B) Tay-Sachs disease 
C) PKU 
D) All of the above are single-gene recessive traits.

Question 14

The Y chromosome is larger than the X chromosome.

Accepted Answer

A) True 
 B)False

Question 15

In a pedigree, a partially shaded circle would indicate a female carrier for the trait.

Accepted Answer

A) True 
 B)False

Question 16

Statistical evidence supports a link between time of insemination and the sex of the offspring.

Accepted Answer

A) True 
 B)False

Question 17

Match each condition with its corresponding statement or definition.
-Condition characterized by mental retardation and multiple defects, caused by trisomy 21

Accepted Answer

A) Down syndrome 
B) Huntington disease 
C) Klinefelter syndrome deficiency 
D) Multiple neurofibromatosis 
E) Parkinson disease
F)Retinitis pigmentosa
G)Severe combined immune deficiency
H)Tay-Sachs disease 
A) Down syndrome 
B) Huntington disease 
C) Klinefelter syndrome deficiency 
D) Multiple neurofibromatosis 
E) Parkinson disease
F)Retinitis pigmentosa
G)Severe combined immune deficiency
H)Tay-Sachs disease

Question 18

If PKU victims avoid large amounts of phenylalanine in their diets, especially during critical stages of development, severe complications can be avoided.

Accepted Answer

A) True 
 B)False

Question 19

If a man had Leber hereditary optic neuropathy, a mitochondrial DNA-carried disease, what is the probability of him passing the trait on to his offspring?

Accepted Answer

A) 100% 
B) 75% 
C) 0% 
D) There is not enough information to determine the probability. 
A) 100% 
B) 75% 
C) 0% 
D) There is not enough information to determine the probability.

Question 20

The effect on the body of uncontrolled PKU is damage to the liver and kidneys.

Accepted Answer

A) True 
 B)False

Exam 48: Genetics and Heredity

The subunits of chromatin wound around a histone protein is called a:

Match each of the terms with its corresponding definition. -Triplet of autosomes resulting from a mistake in meiosis

Match each of the terms with its corresponding definition. -The scientific study of inheritance

If "A" stands for the dominant gene that prevents albinism and "a" stands for the recessive albinism trait, then an individual with the genotype of "aa" will express:

Which of the following statements is not true of mitochondrial DNA?

In human blood type, types A and B are codominant, producing type AB. They are both dominant to the recessive O type. Which of the following parental genotypes could produce a child with type O blood?

What is mitochondrial inheritance? Why does it only involve the mother and what type of diseases or deficiencies are caused by mitochondrial genes?

Because there have been tragic setbacks is some gene therapy clinical trials, there are presently no approved gene therapies available.

After age 35, a mother's chances of producing a trisomic child increase dramatically.

Osteogenesis imperfecta is a recessive disorder of connective tissues.

The proteome is to proteins in the cell what the genome is to the DNA in the cell.

Match each of the terms with its corresponding definition. -Pair of chromosomes in the human genome that determine sex

Which of the following diseases is not a single-gene recessive trait?

The Y chromosome is larger than the X chromosome.

In a pedigree, a partially shaded circle would indicate a female carrier for the trait.

Statistical evidence supports a link between time of insemination and the sex of the offspring.

Match each condition with its corresponding statement or definition. -Condition characterized by mental retardation and multiple defects, caused by trisomy 21

If PKU victims avoid large amounts of phenylalanine in their diets, especially during critical stages of development, severe complications can be avoided.

If a man had Leber hereditary optic neuropathy, a mitochondrial DNA-carried disease, what is the probability of him passing the trait on to his offspring?

The effect on the body of uncontrolled PKU is damage to the liver and kidneys.

Organization of the Body

Homeostasis

Chemistry of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

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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