Question 1

A human cell has

Accepted Answer

A)  22 pairs of sex chromosomes and one pair of autosomes. 
B)  22 pairs of autosomes and one pair of sex chromosomes. 
C)  23 pairs of autosomes. 
D)  23 pairs of autosomes and a pair of Y chromosomes. 
E)  46 pairs of autosomes and one pair of sex chromosomes. 
A)  22 pairs of sex chromosomes and one pair of autosomes. 
B)  22 pairs of autosomes and one pair of sex chromosomes. 
C)  23 pairs of autosomes. 
D)  23 pairs of autosomes and a pair of Y chromosomes. 
E)  46 pairs of autosomes and one pair of sex chromosomes.

Question 2

Cells differentiate by

Accepted Answer

A)  expressing different subsets of genes. 
B)  expressing the entire genome, then silencing some genes. 
C)  dividing. 
D)  activating all of the DNA that encodes protein. 
E)  becoming stem cells. 
A)  expressing different subsets of genes. 
B)  expressing the entire genome, then silencing some genes. 
C)  dividing. 
D)  activating all of the DNA that encodes protein. 
E)  becoming stem cells.

Question 3

Biotechnology grew out of

Accepted Answer

A)  veterinary medicine. 
B)  human health care. 
C)  civil engineering. 
D)  psychology. 
E)  agriculture. 
A)  veterinary medicine. 
B)  human health care. 
C)  civil engineering. 
D)  psychology. 
E)  agriculture.

Question 4

A human body has about _________ cells.

Accepted Answer

A)  3.2 billion 
B)  20,600 
C)  50 to 100 trillion 
D)  10 to 100 million 
E)  a quadrillion 
A)  3.2 billion 
B)  20,600 
C)  50 to 100 trillion 
D)  10 to 100 million 
E)  a quadrillion

Question 5

A test performed on secretions on a piece of fabric left at a crime scene that is used to implicate an apprehended suspect is

Accepted Answer

A)  DNA replication. 
B)  RNA transcription. 
C)  DNA profiling. 
D)  DNA sharing. 
E)  gene expression profiling. 
A)  DNA replication. 
B)  RNA transcription. 
C)  DNA profiling. 
D)  DNA sharing. 
E)  gene expression profiling.

Question 6

A trait or disorder that is multifactorial is

Accepted Answer

A)  present in more than one family member. 
B)  found only in one part of the world. 
C)  caused by one or more genes plus environmental influences. 
D)  caused by a single gene, with no environmental input. 
E)  seen in only males or females. 
A)  present in more than one family member. 
B)  found only in one part of the world. 
C)  caused by one or more genes plus environmental influences. 
D)  caused by a single gene, with no environmental input. 
E)  seen in only males or females.

Question 7

Shawn's mother and Heather's mother are sisters.Shawn and Heather have __ of their genes in common.

Accepted Answer

A)  1/2 
B)  1/4 
C)  1/8 
D)  1/16 
E)  1/32 
A)  1/2 
B)  1/4 
C)  1/8 
D)  1/16 
E)  1/32

Question 8

A variant in a DNA sequence present in at least 1% of a population is a(n)

Accepted Answer

A)  polymorphism. 
B)  micromutation. 
C)  macromutation. 
D)  allele. 
E)  genome. 
A)  polymorphism. 
B)  micromutation. 
C)  macromutation. 
D)  allele. 
E)  genome.

Question 9

One way that single-gene diseases differ from other diseases is that

Accepted Answer

A)  they most often affect people late in life. 
B)  they affect consecutive generations. 
C)  they occur at the same frequency in every population. 
D)  they are not treatable. 
E)  it is possible to predict occurrence in specific relatives. 
A)  they most often affect people late in life. 
B)  they affect consecutive generations. 
C)  they occur at the same frequency in every population. 
D)  they are not treatable. 
E)  it is possible to predict occurrence in specific relatives.

Question 10

The field that investigates the different proteins in specialized cell types is

Accepted Answer

A)  genomics. 
B)  proteomics. 
C)  proteolysis. 
D)  proctology. 
E)  probiotics. 
A)  genomics. 
B)  proteomics. 
C)  proteolysis. 
D)  proctology. 
E)  probiotics.

Question 11

Humans have __ pairs of chromosomes.

Accepted Answer

A)  16 
B)  23 
C)  38 
D)  46 
E)  32 
A)  16 
B)  23 
C)  38 
D)  46 
E)  32

Question 12

The Genetic Information Nondiscrimination Act defines a genetic test as an analysis of

Accepted Answer

A)  human DNA, RNA, proteins, or chromosomes. 
B)  blood or saliva. 
C)  a person's stem cells. 
D)  a person's cancer cells. 
E)  fats, carbohydrates, or proteins. 
A)  human DNA, RNA, proteins, or chromosomes. 
B)  blood or saliva. 
C)  a person's stem cells. 
D)  a person's cancer cells. 
E)  fats, carbohydrates, or proteins.

Question 13

The study of DNA,RNA,and proteins constitutes

Accepted Answer

A)  transmission genetics. 
B)  molecular genetics. 
C)  population genetics. 
D)  evolutionary genetics. 
E)  primate genetics. 
A)  transmission genetics. 
B)  molecular genetics. 
C)  population genetics. 
D)  evolutionary genetics. 
E)  primate genetics.

Question 14

Variants of a gene are called

Accepted Answer

A)  nucleotides. 
B)  genotypes. 
C)  phenotypes. 
D)  alleles. 
E)  single nucleotide polymorphisms. 
A)  nucleotides. 
B)  genotypes. 
C)  phenotypes. 
D)  alleles. 
E)  single nucleotide polymorphisms.

Question 15

A genotype refers to

Accepted Answer

A)  particular allele combinations. 
B)  expression patterns of certain genes. 
C)  the environmental components of a trait. 
D)  the number of chromosomes that a person has. 
E)  the size of a person's genome. 
A)  particular allele combinations. 
B)  expression patterns of certain genes. 
C)  the environmental components of a trait. 
D)  the number of chromosomes that a person has. 
E)  the size of a person's genome.

Question 16

In which choice are the entries listed from smallest to largest?

Accepted Answer

A)  Cell - genome - gene - DNA building block 
B)  DNA building block - gene - chromosome - genome 
C)  DNA building block - RNA building block - protein 
D)  Gene - cell - DNA - genome 
E)  Chromosome - genome - cell - DNA building block 
A)  Cell - genome - gene - DNA building block 
B)  DNA building block - gene - chromosome - genome 
C)  DNA building block - RNA building block - protein 
D)  Gene - cell - DNA - genome 
E)  Chromosome - genome - cell - DNA building block

Question 17

Sequencing all the DNA in the fluid that leaks from the bottom of a garbage can is an example of

Accepted Answer

A)  stem cell science. 
B)  gene expression profiling. 
C)  metagenomics. 
D)  DNA profiling. 
E)  prenatal diagnosis. 
A)  stem cell science. 
B)  gene expression profiling. 
C)  metagenomics. 
D)  DNA profiling. 
E)  prenatal diagnosis.

Question 18

The distinction between mutations and gene expression is that

Accepted Answer

A)  mutations affect only autosomes and gene expression affects only sex chromosomes. 
B)  mutations are dangerous and gene expression promotes health. 
C)  mutations are changes in the DNA sequence, whereas gene expression refers to the extent to which a gene is transcribed and translated, producing protein. 
D)  gene expression refers to changes in the DNA sequence, whereas mutation refers to the processes of DNA replication, RNA transcription, and protein synthesis. 
E)  mutations occur in RNA and gene expression affects DNA. 
A)  mutations affect only autosomes and gene expression affects only sex chromosomes. 
B)  mutations are dangerous and gene expression promotes health. 
C)  mutations are changes in the DNA sequence, whereas gene expression refers to the extent to which a gene is transcribed and translated, producing protein. 
D)  gene expression refers to changes in the DNA sequence, whereas mutation refers to the processes of DNA replication, RNA transcription, and protein synthesis. 
E)  mutations occur in RNA and gene expression affects DNA.

Question 19

Body weight must be a multifactorial trait because

Accepted Answer

A)  it is obviously inherited. 
B)  it responds to lifestyle changes. 
C)  it is within a certain range. 
D)  it is inherited to an extent, but can be altered by diet and/or exercise. 
E)  it varies greatly. 
A)  it is obviously inherited. 
B)  it responds to lifestyle changes. 
C)  it is within a certain range. 
D)  it is inherited to an extent, but can be altered by diet and/or exercise. 
E)  it varies greatly.

Exam 1: Overview of Genetics

A human cell has

Cells differentiate by

Biotechnology grew out of

A human body has about _________ cells.

A test performed on secretions on a piece of fabric left at a crime scene that is used to implicate an apprehended suspect is

A trait or disorder that is multifactorial is

Shawn's mother and Heather's mother are sisters.Shawn and Heather have __ of their genes in common.

A variant in a DNA sequence present in at least 1% of a population is a(n)

One way that single-gene diseases differ from other diseases is that

The field that investigates the different proteins in specialized cell types is

Humans have __ pairs of chromosomes.

The Genetic Information Nondiscrimination Act defines a genetic test as an analysis of

The study of DNA,RNA,and proteins constitutes

Variants of a gene are called

A genotype refers to

In which choice are the entries listed from smallest to largest?

Sequencing all the DNA in the fluid that leaks from the bottom of a garbage can is an example of

The distinction between mutations and gene expression is that

Body weight must be a multifactorial trait because

Cells

Meiosis and Development

Single-Gene Inheritance

Beyond Mendels Law

Matters of Sex

Multifactorial Traits

Genetics of Behavior

DNA Structure and Replication

Gene Action: From Dna to Protein

Gene Expression and Epigenetics

Gene Mutation

Chromosomes

Constant Allele Frequencies

Changing Allele Frequencies

Human Ancestry

Genetics of Immunity

Genetics of Cancer

Genetic Technologies: Amplifying, Modifying, and Monitoring DNA

Genetic Testing and Treatment

Reproductive Technologies

Genomics

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