Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
Complementary DNA and/or RNA molecules pair with each
other by hydrogen bonding during replication, transcription,
or translation. Which of the following pairs of molecules are
complementary? (Select all that apply) *
tRNA and
mRNA
Template DNA and tRNA
mRNA and template DNA
Coding DNA and mRNA
Feedback
Correct! tRNA is complementary to the mRNA. This is how the tRNA is able to place the
appropriate amino acid is the growing polypeptide chain during translation.
What are the necessary ingredients for a PCR reaction? *
Correct! mRNA and template DNA are complementary. RNA polymerase creates the mRNA
1/1
strand by reading the template and placing the complementary nucleotide in the 5'3' direction
dNTPs; RNA polymerase; RNA primers; double-stranded DNA
during transcription.
dNTPs; thermostable DNA polymerase; RNA primers; single-
stranded DNA dNTPs; thermostable DNA polymerase; DNA
primers; double-stranded DNA
dNTPs; RNA polymerase; DNA primers; single-stranded DNA
Feedback
Correct! The correct answer is dNTPS; thermostable DNA polymerase; DNA primers; double
stranded DNA
Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
,Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
dNTPs are the nucleotide building blocks (A,C, T and G), thermostable DNA polymerase is
required because PCR raises the temperature of the reaction mixture to 94 degrees Celsius. This
temperature would denature most proteins, so a special heat tolerant variant of polymerase is
used. DNA primers are important for creating a double stranded region after the parent strands
have been separated, which marks the beginning of replication for the DNA polymerase. Double
stranded DNA is used so that both stands of DNA are copied.
A frameshift mutation changed this sequence 5' AAC GCT
TAG 3' to which of the following? *
1/1
5' AAC GCT TAA 3'
3' GAT TCG CA 5'
5' GAC GCT TAG 3'
3' AAC GCT TAG 5'
Feedback
Correct! The correct answer is 3' GAT TCG CA 5'
Which choice represents a silent mutation for this
sequence: 5’ GGU
Frameshift mutations UGC ACU
lead to sequences with 3'?
either *one less (deletions) or one more (insertions)
nucleotide than the original sequence.
1/1
Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
,Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
5' GGU UGC ACU 3'
3' UCA CGU UAG 5'
5' GGU UGA ACU 3'
5' GGU UGC ACA 3'
Feedback
Correct! The correct answer is 5' GGU UGC ACA 3'
Beta thalassemia is a disease that causes low levels of
hemoglobin.
The original codon ofTo
ACUinherit
codes for this autosomal
a threonine disease,
(Thr), the mutation an individual
which changes the codon to
ACA, also codes for a threonine. Point mutations that do not change the amino acid sequence are
must receive two mutant alleles. Which of the following likely
silent mutations.
Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
, Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
represents the chromosome pairs of a healthy parent who
has a child with beta
Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
Complementary DNA and/or RNA molecules pair with each
other by hydrogen bonding during replication, transcription,
or translation. Which of the following pairs of molecules are
complementary? (Select all that apply) *
tRNA and
mRNA
Template DNA and tRNA
mRNA and template DNA
Coding DNA and mRNA
Feedback
Correct! tRNA is complementary to the mRNA. This is how the tRNA is able to place the
appropriate amino acid is the growing polypeptide chain during translation.
What are the necessary ingredients for a PCR reaction? *
Correct! mRNA and template DNA are complementary. RNA polymerase creates the mRNA
1/1
strand by reading the template and placing the complementary nucleotide in the 5'3' direction
dNTPs; RNA polymerase; RNA primers; double-stranded DNA
during transcription.
dNTPs; thermostable DNA polymerase; RNA primers; single-
stranded DNA dNTPs; thermostable DNA polymerase; DNA
primers; double-stranded DNA
dNTPs; RNA polymerase; DNA primers; single-stranded DNA
Feedback
Correct! The correct answer is dNTPS; thermostable DNA polymerase; DNA primers; double
stranded DNA
Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
,Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
dNTPs are the nucleotide building blocks (A,C, T and G), thermostable DNA polymerase is
required because PCR raises the temperature of the reaction mixture to 94 degrees Celsius. This
temperature would denature most proteins, so a special heat tolerant variant of polymerase is
used. DNA primers are important for creating a double stranded region after the parent strands
have been separated, which marks the beginning of replication for the DNA polymerase. Double
stranded DNA is used so that both stands of DNA are copied.
A frameshift mutation changed this sequence 5' AAC GCT
TAG 3' to which of the following? *
1/1
5' AAC GCT TAA 3'
3' GAT TCG CA 5'
5' GAC GCT TAG 3'
3' AAC GCT TAG 5'
Feedback
Correct! The correct answer is 3' GAT TCG CA 5'
Which choice represents a silent mutation for this
sequence: 5’ GGU
Frameshift mutations UGC ACU
lead to sequences with 3'?
either *one less (deletions) or one more (insertions)
nucleotide than the original sequence.
1/1
Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
,Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
5' GGU UGC ACU 3'
3' UCA CGU UAG 5'
5' GGU UGA ACU 3'
5' GGU UGC ACA 3'
Feedback
Correct! The correct answer is 5' GGU UGC ACA 3'
Beta thalassemia is a disease that causes low levels of
hemoglobin.
The original codon ofTo
ACUinherit
codes for this autosomal
a threonine disease,
(Thr), the mutation an individual
which changes the codon to
ACA, also codes for a threonine. Point mutations that do not change the amino acid sequence are
must receive two mutant alleles. Which of the following likely
silent mutations.
Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
, Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
represents the chromosome pairs of a healthy parent who
has a child with beta
Biochemistry C785 Questions and ANSWERS Rationale
BEST EXAM SOLUTION GUARANTEED SUCCESS LATES
UPDATE 2022/2023 RATED A+
