POB SHADWICK EXAM 3 CHAPTER
QUESTIONS & ANSWERS
DNA does NOT have which of the following characteristics?
A. has a double helix
B. bases held together by hydrogen bonds
C. has a deoxyribose sugar
D. contains adenine, guanine, cytosine, and uracil - ANSWERD. contains adenine,
guanine, cytosine, and uracil
Which base is unique to DNA?
A. guanine
B. adenine
C. thymine
D. uracil - ANSWERC. thymine
The individual(s) credited with the discovery of the structure of DNA is (are)
A. James Watson and Francis Crick.
B. Erwin Chargaff.
C. Rosalind Franklin and Maurice Wilkins.
D. Charles Darwin and Gregor Mendel. - ANSWERA. James Watson and Francis Crick.
In semiconservative DNA replication, each new double helix formed will have
A. two new strands and two old strands.
B. one new and one old strand in each helix.
C. two new and one old strand in one helix and two old and one new strand in second
helix.
D. two new strands in one helix and two old strands in the other helix. - ANSWER*B.
one new and one old strand in each helix.
Because one original strand of the double-stranded helix is found in each daughter
molecule, the replication process is called
A. proofreading.
B. semi-conservative.
C. freeing of DNA.
D. mutation positive. - ANSWER*B. semi-conservative.
The enzyme that reads the template strand and makes a complementary strand of DNA
is
,A. DNA polymerase.
B. RNA polymerase.
C. helicase.
D. ribozyme. - ANSWER*A. DNA polymerase.
The _____ enzyme is responsible for unwinding the double-helix structure of DNA
during replication.
A. helicase
B. polymerase
C. extendase
D. windase - ANSWERA. helicase
Which does NOT describe a function of the DNA polymerase molecule?
A. recognize the free nucleotide that pairs with the base on the old strand of DNA
B. read the strand of old DNA and recognize the base there
C. proofread to ensure that the proper base has been incorporated
D. synthesize the proper nucleotide to match with the base read on the old strand -
ANSWER*D. synthesize the proper nucleotide to match with the base read on the old
strand
Which of the classes of RNA molecules carries the genetic information from the nucleus
as it is needed for the construction of a protein?
A. ribosomal RNA
B. transfer RNA
C. messenger RNA
D. nuclear RNA - ANSWER*C. messenger RNA
The function of transfer RNA is to
A. carry amino acids to ribosomes.
B. transmit coded information to the cytoplasm.
C. turn DNA on and off.
D. act as the site for protein synthesis. - ANSWER*A. carry amino acids to ribosomes.
Which of the classes of RNA molecules carries the amino acids that are added to the
growing polypeptide chain?
A. ribosomal RNA
B. transfer RNA
C. messenger RNA
D. ribozyme - ANSWER*B. transfer RNA
, The ______ contain(s) the information for the structure of the protein.
A. introns
B. exons
C. promoter
D. ribosomes - ANSWER*B. exons
An intervening sequence of DNA that is NOT expressed is called a(n)
A. exon.
B. intron.
C. replicon.
D. gene. - ANSWER*B. intron.
During the process of transcription, the information in
A. a protein is converted into RNA information.
B. RNA is converted into protein information.
C. RNA is converted into DNA information.
D. DNA is converted into RNA information.
E. DNA is converted into protein information. - ANSWER*D. DNA is converted into RNA
information.
Which is the process that synthesizes mRNA?
A. translation
B. transcription
C. transformation
D. translocation - ANSWER*B. transcription
The correct sequence of events in the production of a polypeptide is
A. initiation - termination - elongation.
B. elongation - termination - initiation.
C. elongation - initiation - termination.
D. initiation - elongation - termination. - ANSWER*D. initiation - elongation - termination.
Which is the process by which a protein is constructed in the cytoplasm of eukaryotic
cells?
A. translation
B. transcription
C. transformation
D. translocation - ANSWER*A. translation
QUESTIONS & ANSWERS
DNA does NOT have which of the following characteristics?
A. has a double helix
B. bases held together by hydrogen bonds
C. has a deoxyribose sugar
D. contains adenine, guanine, cytosine, and uracil - ANSWERD. contains adenine,
guanine, cytosine, and uracil
Which base is unique to DNA?
A. guanine
B. adenine
C. thymine
D. uracil - ANSWERC. thymine
The individual(s) credited with the discovery of the structure of DNA is (are)
A. James Watson and Francis Crick.
B. Erwin Chargaff.
C. Rosalind Franklin and Maurice Wilkins.
D. Charles Darwin and Gregor Mendel. - ANSWERA. James Watson and Francis Crick.
In semiconservative DNA replication, each new double helix formed will have
A. two new strands and two old strands.
B. one new and one old strand in each helix.
C. two new and one old strand in one helix and two old and one new strand in second
helix.
D. two new strands in one helix and two old strands in the other helix. - ANSWER*B.
one new and one old strand in each helix.
Because one original strand of the double-stranded helix is found in each daughter
molecule, the replication process is called
A. proofreading.
B. semi-conservative.
C. freeing of DNA.
D. mutation positive. - ANSWER*B. semi-conservative.
The enzyme that reads the template strand and makes a complementary strand of DNA
is
,A. DNA polymerase.
B. RNA polymerase.
C. helicase.
D. ribozyme. - ANSWER*A. DNA polymerase.
The _____ enzyme is responsible for unwinding the double-helix structure of DNA
during replication.
A. helicase
B. polymerase
C. extendase
D. windase - ANSWERA. helicase
Which does NOT describe a function of the DNA polymerase molecule?
A. recognize the free nucleotide that pairs with the base on the old strand of DNA
B. read the strand of old DNA and recognize the base there
C. proofread to ensure that the proper base has been incorporated
D. synthesize the proper nucleotide to match with the base read on the old strand -
ANSWER*D. synthesize the proper nucleotide to match with the base read on the old
strand
Which of the classes of RNA molecules carries the genetic information from the nucleus
as it is needed for the construction of a protein?
A. ribosomal RNA
B. transfer RNA
C. messenger RNA
D. nuclear RNA - ANSWER*C. messenger RNA
The function of transfer RNA is to
A. carry amino acids to ribosomes.
B. transmit coded information to the cytoplasm.
C. turn DNA on and off.
D. act as the site for protein synthesis. - ANSWER*A. carry amino acids to ribosomes.
Which of the classes of RNA molecules carries the amino acids that are added to the
growing polypeptide chain?
A. ribosomal RNA
B. transfer RNA
C. messenger RNA
D. ribozyme - ANSWER*B. transfer RNA
, The ______ contain(s) the information for the structure of the protein.
A. introns
B. exons
C. promoter
D. ribosomes - ANSWER*B. exons
An intervening sequence of DNA that is NOT expressed is called a(n)
A. exon.
B. intron.
C. replicon.
D. gene. - ANSWER*B. intron.
During the process of transcription, the information in
A. a protein is converted into RNA information.
B. RNA is converted into protein information.
C. RNA is converted into DNA information.
D. DNA is converted into RNA information.
E. DNA is converted into protein information. - ANSWER*D. DNA is converted into RNA
information.
Which is the process that synthesizes mRNA?
A. translation
B. transcription
C. transformation
D. translocation - ANSWER*B. transcription
The correct sequence of events in the production of a polypeptide is
A. initiation - termination - elongation.
B. elongation - termination - initiation.
C. elongation - initiation - termination.
D. initiation - elongation - termination. - ANSWER*D. initiation - elongation - termination.
Which is the process by which a protein is constructed in the cytoplasm of eukaryotic
cells?
A. translation
B. transcription
C. transformation
D. translocation - ANSWER*A. translation
