Question 1

Chemicals that cause mutations are called

Accepted Answer

A) mutagens. 
B) mutation. 
C) genetic inhibitor. 
D) genetic modifier. 
E) genetic activator. 
A) mutagens. 
B) mutation. 
C) genetic inhibitor. 
D) genetic modifier. 
E) genetic activator.

Question 2

A mutation is

Accepted Answer

A) an error in base sequence that is repeated in each replication or transcription of DNA. 
B) something that causes an error in the nucleotide sequence in DNA. 
C) something that causes abnormal growth in embryos. 
D) something that causes abnormal and excessive cell division. 
E) excessive cell division leading to growth of tumors. 
A) an error in base sequence that is repeated in each replication or transcription of DNA. 
B) something that causes an error in the nucleotide sequence in DNA. 
C) something that causes abnormal growth in embryos. 
D) something that causes abnormal and excessive cell division. 
E) excessive cell division leading to growth of tumors.

Question 3

The portion of a DNA molecule that actually codes for proteins is called a(an)

Accepted Answer

A) intron. 
B) exon. 
C) sticky end. 
D) codon. 
E) primer. 
A) intron. 
B) exon. 
C) sticky end. 
D) codon. 
E) primer.

Question 4

The statement "Single-nucleotide polymorphisms are not as serious as mutations" is

Accepted Answer

A) true,because SNPs only result in minor variations between individuals. 
B) true,because SNPs can result in serious diseases such as sickle-cell anemia. 
C) false,because SNPs only result in minor variations between individuals. 
D) false,because SNPs can result in serious diseases such as sickle-cell anemia. 
E) impossible to evaluate because SNPs and mutations are not related. 
A) true,because SNPs only result in minor variations between individuals. 
B) true,because SNPs can result in serious diseases such as sickle-cell anemia. 
C) false,because SNPs only result in minor variations between individuals. 
D) false,because SNPs can result in serious diseases such as sickle-cell anemia. 
E) impossible to evaluate because SNPs and mutations are not related.

Question 5

A promoter sequence is

Accepted Answer

A) a DNA sequence that determines which genes are turned on for coding. 
B) the beginning DNA sequence for all DNA molecules. 
C) the initial set of bases showing where an exon begins. 
D) the DNA code that begins protein synthesis. 
E) none of the above 
A) a DNA sequence that determines which genes are turned on for coding. 
B) the beginning DNA sequence for all DNA molecules. 
C) the initial set of bases showing where an exon begins. 
D) the DNA code that begins protein synthesis. 
E) none of the above

Question 6

According to the current working draft of the human genome,which of the following statements is(are)correct?
I.The human genome contains at least 100,000 genes.
II.One gene can code for several different proteins.
III.Approximately 50% of the genome is "junk" DNA.
IV.At least 200 human genes are identical to genes of bacteria.

Accepted Answer

A) None of the statements is correct. 
B) All of the statements are correct. 
C) I,II,and IV are correct. 
D) II,III,and IV are correct. 
E) I,III,and IV are correct. 
A) None of the statements is correct. 
B) All of the statements are correct. 
C) I,II,and IV are correct. 
D) II,III,and IV are correct. 
E) I,III,and IV are correct.

Question 7

A mutation involves an error in

Accepted Answer

A) mRNA manufacture. 
B) translation. 
C) tRNA manufacture. 
D) rRNA manufacture. 
E) DNA replication. 
A) mRNA manufacture. 
B) translation. 
C) tRNA manufacture. 
D) rRNA manufacture. 
E) DNA replication.

Question 8

An alteration of the gentic material of an organism that will have the organism performing different functions such as producing a new substance is

Accepted Answer

A) biotechnology. 
B) bioinformatics. 
C) gene therapy. 
D) genetic engineering. 
E) pharmacogenetics. 
A) biotechnology. 
B) bioinformatics. 
C) gene therapy. 
D) genetic engineering. 
E) pharmacogenetics.

Question 9

Discuss the importance of telomeres in cell death and in cancer.

Accepted Answer

Telomeres are non-coding sequences of nu

Question 10

When the new strand of DNA is added to the cut plasmid what enzyme is used to join the respective sticky ends together?

Accepted Answer

A) DNA polymerase 
B) DNA ligase 
C) EcoRI 
D) DNA gyrase 
A) DNA polymerase 
B) DNA ligase 
C) EcoRI 
D) DNA gyrase

Question 11

Explain the difference between polymorphisms and mutations.

Accepted Answer

A mutation is an error or variation in b

Question 12

The function of the telomeres is

Accepted Answer

A) protection of the DNA that actually codes useful information. 
B) addition of nucleotides to the DNA molecule. 
C) prevention of interaction between DNA and RNA. 
D) initiation of replication of DNA. 
E) initiation of production of mRNA from DNA. 
A) protection of the DNA that actually codes useful information. 
B) addition of nucleotides to the DNA molecule. 
C) prevention of interaction between DNA and RNA. 
D) initiation of replication of DNA. 
E) initiation of production of mRNA from DNA.

Question 13

A mutagen is

Accepted Answer

A) an error in base sequence that is repeated in each replication or transcription of DNA. 
B) something that causes an error in the nucleotide sequence in DNA. 
C) something that causes abnormal growth in embryos. 
D) something that causes abnormal and excessive cell division. 
E) excessive cell division leading to growth of tumors. 
A) an error in base sequence that is repeated in each replication or transcription of DNA. 
B) something that causes an error in the nucleotide sequence in DNA. 
C) something that causes abnormal growth in embryos. 
D) something that causes abnormal and excessive cell division. 
E) excessive cell division leading to growth of tumors.

Question 14

An example of a SNP is which of the following?

Accepted Answer

A) Gaucher's Disease 
B) Sickle cell anemia 
C) Hemophilia 
D) Huntington's disease 
E) all of these 
A) Gaucher's Disease 
B) Sickle cell anemia 
C) Hemophilia 
D) Huntington's disease 
E) all of these

Question 15

Which of the following statements about DNA fingerprinting is false?

Accepted Answer

A) The percent of the differences in DNA between people is great (99.9%). 
B) Small DNA samples can be used through a process called PCR. 
C) Everyone has different DNA,except identical twins. 
D) DNA can be extracted from almost any biological sample. 
E) All of these statements are correct. 
A) The percent of the differences in DNA between people is great (99.9%). 
B) Small DNA samples can be used through a process called PCR. 
C) Everyone has different DNA,except identical twins. 
D) DNA can be extracted from almost any biological sample. 
E) All of these statements are correct.

Question 16

Enzymes used in genetic engineering to cleave DNA are called

Accepted Answer

A) restriction enzymes. 
B) ligases. 
C) hydrolases. 
D) lyases. 
E) synthases. 
A) restriction enzymes. 
B) ligases. 
C) hydrolases. 
D) lyases. 
E) synthases.

Question 17

A gene mutation that involves a change in the DNA sequence that still specifies for the same amino acid is called a ________ mutation

Accepted Answer

A) frameshift 
B) silent 
C) point 
D) nonsense 
A) frameshift 
B) silent 
C) point 
D) nonsense

Question 18

The ethical implications of altering any gene falls under the category of

Accepted Answer

A) biotechnology. 
B) bioethics. 
C) bioinformatics. 
D) pharmacogenetics. 
E) all of the above 
A) biotechnology. 
B) bioethics. 
C) bioinformatics. 
D) pharmacogenetics. 
E) all of the above

Question 19

The process of making multiple copies of DNA is accomplished by a process called

Accepted Answer

A) polymerase chain reaction. 
B) recombinant DNA. 
C) restriction endonuclease activity. 
D) insertions. 
A) polymerase chain reaction. 
B) recombinant DNA. 
C) restriction endonuclease activity. 
D) insertions.

Question 20

The function of a restriction enzyme is to

Accepted Answer

A) build up DNA or RNA molecules one nucleotide at a time. 
B) break down DNA or RNA into all their component nucleotides. 
C) break a DNA molecule between two specific nucleotides. 
D) prevent formation of a chemical bond between a specific pair of nucleotides. 
E) prevent formation of the sugar-phosphate backbone of nucleic acids. 
A) build up DNA or RNA molecules one nucleotide at a time. 
B) break down DNA or RNA into all their component nucleotides. 
C) break a DNA molecule between two specific nucleotides. 
D) prevent formation of a chemical bond between a specific pair of nucleotides. 
E) prevent formation of the sugar-phosphate backbone of nucleic acids.

Exam 27: Genomics

Chemicals that cause mutations are called

A mutation is

The portion of a DNA molecule that actually codes for proteins is called a(an)

The statement "Single-nucleotide polymorphisms are not as serious as mutations" is

A promoter sequence is

A mutation involves an error in

An alteration of the gentic material of an organism that will have the organism performing different functions such as producing a new substance is

Discuss the importance of telomeres in cell death and in cancer.

When the new strand of DNA is added to the cut plasmid what enzyme is used to join the respective sticky ends together?

Explain the difference between polymorphisms and mutations.

The function of the telomeres is

A mutagen is

An example of a SNP is which of the following?

Which of the following statements about DNA fingerprinting is false?

Enzymes used in genetic engineering to cleave DNA are called

A gene mutation that involves a change in the DNA sequence that still specifies for the same amino acid is called a ________ mutation

The ethical implications of altering any gene falls under the category of

The process of making multiple copies of DNA is accomplished by a process called

The function of a restriction enzyme is to

Matter and Measurements

Atoms and the Periodic Table

Ionic Compounds

Molecular Compounds

Classification and Balancing of Chemical Reactions

Chemical Reactions: Mole and Mass Relationships

Chemical Reactions: Energy, rates, and Equilibrium

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Solutions

Acids and Bases

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Introduction to Organic Chemistry: Alkanes

Alkenes, alkynes, and Aromatic Compounds

Some Compounds With Oxygen, sulfur, or a Halogen

Aldehydes and Ketones

Amines

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

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The Generation of Biochemical Energy

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