BLD 430 EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED GRADED A++
In translation, what is the starting material, what is the ending material, and what
is the major enzyme that catalyzes the process?
RNA; protein; peptidyl transferase
In the genetic code, all but two amino acids are encoded for by more than one
codon. What characteristic is this referring to?
Redundancy
When mRNA is transcribed, it is identical to the template strand with the
exception that U replaces T.
False
What term best describes DNA replication?
Semiconservative
Which of the following is required for transcription termination in eukaryotes?
Poly A signal
Which of the following characteristics is associated with prokaryotic mRNA?
Polycistronic
The specificity of the aminoacyl tRNA synthetases maintain the integrity of
translation of mRNA to polypeptide
True
Which of the following characteristics is associated with eukaryotic mRNA?
,Alternative spicing
5' capping
3' Poly A tail
What type of bond spontaneously forms between complimentary strands of DNA?
Hydrogen
In the ribosome, the growing peptide moves from site to site in what direction?
A to P to E
DNA deoxynucleotide triphosphates are joined together by what type of covalent
bond?
Phosphodiester
What is movement of DNA from one bacterium to another through the activity of
bacteriophages?
Transduction
Degrades RNA
Ribonuclease
Multi-subunit enzyme that catalyzes RNA transcription from DNA template
RNA polymerase
Synthesizes RNA primer
DNA Primase
Remove bases from the ends of DNA strands
Exonuclease
Catalyzes a single phosphodiester bond and connects the DNA fragments of
backbone
, DNA ligase
Separates DNA double strands
Helicase
Endonuclease that recognizes palindromic sequences on double stranded DNA
and has specific cleavage patterns
Type II Restriction Enzyme
Catalyzes elongation of replicated DNA strand by adding complementary dNTPs ,
has proofreading activity
DNA Polymerase
What refers to the sequence of amino acids in a protein?
Primary
How many nucleotides are in a codon?
3
Which is the start codon?
AUG
Which RNA contains the anticodon loop?
tRNA
Which subunit of prokaryotic RNA polymerase is the holoenzyme and makes its
functionally active?
σ
Although mutations in the BRCA1 and BRCA2 genes have been associated with
an increased risk of breast cancer, some people that have these mutations do not
develop the disease. Is this an example of reduced penetrance or expressivity?
COMPLETE SOLUTIONS VERIFIED GRADED A++
In translation, what is the starting material, what is the ending material, and what
is the major enzyme that catalyzes the process?
RNA; protein; peptidyl transferase
In the genetic code, all but two amino acids are encoded for by more than one
codon. What characteristic is this referring to?
Redundancy
When mRNA is transcribed, it is identical to the template strand with the
exception that U replaces T.
False
What term best describes DNA replication?
Semiconservative
Which of the following is required for transcription termination in eukaryotes?
Poly A signal
Which of the following characteristics is associated with prokaryotic mRNA?
Polycistronic
The specificity of the aminoacyl tRNA synthetases maintain the integrity of
translation of mRNA to polypeptide
True
Which of the following characteristics is associated with eukaryotic mRNA?
,Alternative spicing
5' capping
3' Poly A tail
What type of bond spontaneously forms between complimentary strands of DNA?
Hydrogen
In the ribosome, the growing peptide moves from site to site in what direction?
A to P to E
DNA deoxynucleotide triphosphates are joined together by what type of covalent
bond?
Phosphodiester
What is movement of DNA from one bacterium to another through the activity of
bacteriophages?
Transduction
Degrades RNA
Ribonuclease
Multi-subunit enzyme that catalyzes RNA transcription from DNA template
RNA polymerase
Synthesizes RNA primer
DNA Primase
Remove bases from the ends of DNA strands
Exonuclease
Catalyzes a single phosphodiester bond and connects the DNA fragments of
backbone
, DNA ligase
Separates DNA double strands
Helicase
Endonuclease that recognizes palindromic sequences on double stranded DNA
and has specific cleavage patterns
Type II Restriction Enzyme
Catalyzes elongation of replicated DNA strand by adding complementary dNTPs ,
has proofreading activity
DNA Polymerase
What refers to the sequence of amino acids in a protein?
Primary
How many nucleotides are in a codon?
3
Which is the start codon?
AUG
Which RNA contains the anticodon loop?
tRNA
Which subunit of prokaryotic RNA polymerase is the holoenzyme and makes its
functionally active?
σ
Although mutations in the BRCA1 and BRCA2 genes have been associated with
an increased risk of breast cancer, some people that have these mutations do not
develop the disease. Is this an example of reduced penetrance or expressivity?
