Principles of Biology 1 Final Exam Study
Guide UPDATED ACTUAL Exam
Questions and CORRECT Answers
According to Chargaff's data, ______ must pair with _______, _________ must pair with
__________. - CORRECT ANSWER - A;T;C;G
True or False: The two DNA strands must be separated before DNA replication or transcription
can occur. - CORRECT ANSWER - True
Which base is found in DNA, but not in RNA? - CORRECT ANSWER - Thymine
tRNAs carrying the correct amino acid recognize the proper codons on the mRNA because -
CORRECT ANSWER - the anticodon of the tRNA hydrogen binds to the codon of the
mRNA by complementary base pairing.
The three steps that are required for DNA replication are - CORRECT ANSWER -
unwinding, complementary base pairing, and joining
The stages of translation are - CORRECT ANSWER - initiation, elongation cycle, and
termination.
The sequence of the mRNA that would result from transcribing a DNA template strand with the
bases TACGCTAAT would be - CORRECT ANSWER - AUGCGAUUA
What is the hereditary material found in all cells? - CORRECT ANSWER - DNA
RNA differs from DNA because RNA - CORRECT ANSWER - is single-stranded,
whereas DNA is double-stranded.
, The central dogma of molecular states that the information contained within genres flows in
which direction? - CORRECT ANSWER - DNA —> RNA —-> protein
An intervening sequence of DNA that is not expressed is called a(n) - CORRECT
ANSWER - intron
Which of the following processes take place in the cytoplasm - CORRECT ANSWER -
translation
DNA replication is called semiconservative because - CORRECT ANSWER - each
resulting DNA molecules is comprised of one new DNA strand and one old strand.
What chemical force must be overcome in order to separate the two DNA strands during
replication? - CORRECT ANSWER - hydrogen bonds
True or False: Proteins are active immediately after translation occurs - CORRECT
ANSWER - False
Which of the following enzyme is needed to reseal breaks in the sugar phosphate backbone
during replication? - CORRECT ANSWER - DNA ligase
Reproductive cloning results in _______ while therapeutic cloning results in ___________ -
CORRECT ANSWER - clones; various types of mature cells
Which of the following is used to insert the foreign gene when creating recombinant DNA? -
CORRECT ANSWER - vector
These are several methods of gene editing, including _________, the most widely used method -
CORRECT ANSWER - CRISPR
Guide UPDATED ACTUAL Exam
Questions and CORRECT Answers
According to Chargaff's data, ______ must pair with _______, _________ must pair with
__________. - CORRECT ANSWER - A;T;C;G
True or False: The two DNA strands must be separated before DNA replication or transcription
can occur. - CORRECT ANSWER - True
Which base is found in DNA, but not in RNA? - CORRECT ANSWER - Thymine
tRNAs carrying the correct amino acid recognize the proper codons on the mRNA because -
CORRECT ANSWER - the anticodon of the tRNA hydrogen binds to the codon of the
mRNA by complementary base pairing.
The three steps that are required for DNA replication are - CORRECT ANSWER -
unwinding, complementary base pairing, and joining
The stages of translation are - CORRECT ANSWER - initiation, elongation cycle, and
termination.
The sequence of the mRNA that would result from transcribing a DNA template strand with the
bases TACGCTAAT would be - CORRECT ANSWER - AUGCGAUUA
What is the hereditary material found in all cells? - CORRECT ANSWER - DNA
RNA differs from DNA because RNA - CORRECT ANSWER - is single-stranded,
whereas DNA is double-stranded.
, The central dogma of molecular states that the information contained within genres flows in
which direction? - CORRECT ANSWER - DNA —> RNA —-> protein
An intervening sequence of DNA that is not expressed is called a(n) - CORRECT
ANSWER - intron
Which of the following processes take place in the cytoplasm - CORRECT ANSWER -
translation
DNA replication is called semiconservative because - CORRECT ANSWER - each
resulting DNA molecules is comprised of one new DNA strand and one old strand.
What chemical force must be overcome in order to separate the two DNA strands during
replication? - CORRECT ANSWER - hydrogen bonds
True or False: Proteins are active immediately after translation occurs - CORRECT
ANSWER - False
Which of the following enzyme is needed to reseal breaks in the sugar phosphate backbone
during replication? - CORRECT ANSWER - DNA ligase
Reproductive cloning results in _______ while therapeutic cloning results in ___________ -
CORRECT ANSWER - clones; various types of mature cells
Which of the following is used to insert the foreign gene when creating recombinant DNA? -
CORRECT ANSWER - vector
These are several methods of gene editing, including _________, the most widely used method -
CORRECT ANSWER - CRISPR
