BIOL130 Lecture Notes - Lecture 5: Rna Polymerase Iii, Rna Polymerase Ii, Rna Polymerase I
Get access
Related Documents
Related Questions
Please answer all
Why does a template-dependent DNA polymerase require a primer to initiate DNA synthesis?
DNA polymerase require 5' phosphate to add a new nucleotide | |
DNA polymerase require 3' hydroxyl group to add a new nucleotide |
DNA polymerase require energy by hydrolizing the primers |
Which of the following enzymes is template independent?
Reverse transcriptase | |
Klenow fragment |
DNA polymerase | |
Terminal deoxynucleotidyl transferase |
RNA polymerase |
The natural function of a DNA ligase enzyme is:
Joining together DNA sequences with compatible cohesive ends from two different organisms to yield a recombinant DNA molecule | |
Sealing single stranded nicks in double stranded DNA molecules |
Joining together two blunt ended fragments of DNA within a cell | |
Joining together two single stranded DNA molecules |
The natural function of 3' -> 5' exonuclease activity of a DNA polymerase is to:
Remove the 5' end of the DNA strand that is being copied | |
Remove damaged nucleotide from the template strand |
Remove nucleotides from the end of DNA to generate blunt ends | |
Remove incorrect nucleotides from the newly synthesized DNA |
Which technique is used to resolve the different sizes of DNA fragments?
Gene cloning | |
PCR |
DNA sequencing | |
Gel electrophoresis |
Which of the following vectors does not contain bacterial origin of replication (oriC)?
plasmid | |
cosmid |
bacterial artificial chromosome | |
lambda vector |
Which process of bacteriophage is not used for gene cloning?
Concatemer formation | |
Lytic cycle |
Lysogenic cycle | |
viral packaging |
What vector would be best suited for creating a contig of bovine (cattle) chromosome 10?
lambda vector | |
Cosmid vector |
P1 vector | |
Plasmid |
E. coli takes up plasmid DNA by which of the following methods?
Transduction | |
Transformation |
Conjugation | |
Transfection |
The following times and temperatures are an example of the steps for PCR. You can use the Figure to help you answer the following questions.
Why is the first step is carried out at 94°C?
To degrade the template | |
To denature the template |
To activate the polymerase | |
To facilitate the primer binding |
What happens in the reaction when the temperature shifts to 55°C during cycling?
the DNA polymerase will carry out DNA synthesis by extending the annealed primers | |
the DNA polymerase will finish DNA synthesis |
the primers anneal to the single-stranded regions of the DNA | |
the primers anneal to the double-stranded regions of the DNA |
During cycling, what occurs when the temperature is at 72°C?
the primers anneal to the double-stranded regions of the DNA | |
the DNA polymerase will carry out DNA synthesis by extending the annealed primers |
the primers anneal to the single-stranded regions of the DNA | |
the DNA polymerase will finish DNA synthesis |
You designed a set of primers to amplify 1 kb DNA with polymerase chain reaction. By which cycle of polymerase chain reaction, we would expect to see the first double stranded DNA with expected size?
The end of cycle 1 | |
The end of cycle 2 |
The end of cycle3 | |
The end of cycle 4 |
DNA Structure and Function LabReport
- DNA Structure
- Which two scientists are credited with discovering DNA?
- Name the nitrogen bases that are purines.
- Which nitrogen base pairs with thymine?
- List the three components of a nucleotide.
- DNA Replication
- What is the purpose of DNA replication?
- How many times does replication occur in the life of acell?
- In the Lab, Exercise 2, the original strand on the left had thebases shown below. Input the new bases that correctly pair with theoriginal strand.
Original | New |
C | |
A | |
G | |
T |
- RNA Structure
- Describe the structure and function of RNA.
- Refer to Exercise 3 and record the bases of the RNA strandproduced from the replicated DNA strand.
DNA | RNA |
C | |
A | |
G | |
T |
- Record the differences between DNA and RNA in the tablebelow.
DNA | RNA | |
Sugars | ||
Bases | ||
Strands |
- RNA Synthesis
- The process of assembling RNA is called _________.
- How is replication different from transcription?
- Refer to Exercise 4. Write the letters for the base sequence ofmRNA in the spaces below DNA. Note that the order is reversed;start with the 3â end of the DNA strand and the 5â end of the mRNAstrand. Transcription is DNA to mRNA. Note RNA contains Uracilinstead of Thymine; There is no thymine in RNA.
DNA | 3â | C | G | T | C | G | T | C | C | A | A | T | T | 5â |
mRNA | 5â | 3â |
- Protein Synthesis
- What type of RNA provides amino acids to build polypeptidechains?
- If a mRNA strand has the bases 5â CUC 3â, what amino acid willbe translated? Refer to the printable chart in Exercise 5.
- Where in the cell does translation occur?
- Genes
- What could be the problem if there is a change in the basesequence of a gene as it is passed down to the offspring?
- Give an example of a disorder that results from changes in theamino acid sequence.
- What causes sickle cell anemia?
- Gene Cloning
- What is the function of a plasmid?
- Print the document from Lab, Exercise 6. Complete the activityalong with the video demonstration. Sign, date, and take an imageof your final product and include with this lab report.