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WorksheetsBiotechnology
Total questions: 100
Worksheet time: 1hrs 9mins
What is a cDNA?
collection of total genomic DNA
non-coding RNA molecule (containing about 22 nucleotides) found in plants,
complementary DNA molecules synthesized from mRNA
small interfering Ribonucleic Acid, is a class of double-stranded RNA molecules
This is the practice of inserting the DNA of another species into an organism's DNA so that the organism gains a new trait.
Cloning
Gel Electrophoresis
Genetic Engineering
DNA Fingerprinting
Restriction enzymes are analogous to what common school supply?
glue
scissors
paper
highlighter
The site where restriction enzymes cut are a called:
cut sites
restriction sites
recognition sites
cleave sites
Where are restriction enzymes naturally found?
in humans
in bacteria
in algae
they are not natural - all restriction enzymes are made in the lab
If a linear piece of DNA contains 3 recognition sites for a restriction enzyme. How many pieces will be produced when the restriction enzyme cuts the DNA?
2
3
4
5
6
What enzyme binds to the promotor of the plasmid to transcribe the gene inserted into the plasmid?
DNA polymerase
helicase
RNA polymerase
ligase
What enzyme is used to ensure that the recombinant DNA created is bonded together along the sugar-phosphate backbone?
DNA polymerase
RNA polymerase
ligase
helicase
Biological cloning is frequently used to make which of the following:
Human growth hormone
Human insulin
genetically modified oil eating microbes
pest resistant crops
all of the options
Why are primers needed for the PCR process?
they are what makes copy of the DNA
they are used to build more copies of the DNA
they attach to sites on the DNA on either side of the DNA to be copied
they are what change temperature to copy the DNA
A technique for making millions of copies of a specific region of DNA.
DNA ligase
restriction enzymes
gel electrophoresis
polymerase chain reaction
From where does Taq polymerase come?
Bacteria that live in hydrothermal vents/hot springs.
Cambodia
The rain forest
The CDC
At what temperature does the Denature step of PCR occur?
95° C
50° C
72° C
Any temperature
At what temperature does the Anneal step of PCR occur?
95° C
50° C
72° C
Any temperature
At what temperature does the Extension step of PCR occur?
95°C
50-65°C
72°C
Any temperature
If two double-stranded DNA molecules are used at the beginning of a polymerase chain reaction (PCR) process, how many double-stranded DNA molecules can be obtained after two cycles?
2
4
8
32
What is gene therapy?
Introduce a functional gene into a person who lacks this
gene
Treating recessive
diseases
Both
Long term expression, infects neuroglia
Retrovirus
Adenovirus
Herpes virus
Adeno-associated virus
Methods for chemical transfection:
i) Calcium chloride
ii) DEA dextran
iii) Cationic lipid
iv) Anionic lipid
All above
i, ii, iii
ii, iii, iv
iii, iv
It is the transfer of genetic material for the purpose of treating human disease.
chemotherapy
gene therapy
gene transfer
gene editing
A disease caused by mutation in the genetic material or DNA
Cloning Disease
Mutant disease
Genetic disease
All of the Above
A/an "_____" gene is introduced into the patient to replace an "_____" disease causing gene.
normal - abnormal
good - bad
abnormal - normal
bad - good
The first reported case of gene therapy in 1999 by ________
Jesse Gelsinger
Albert Einstein
Robert Hook
Dr. Victoria Ashton
Which of the following best describes a gene?
A section of DNA
Circular DNA found in bacteria
DNA that has genes from different organisms
A bundle of DNA
Which of the following best describes transgenic organism?
Changing bacterial DNA by adding genes to it
Any organism that has DNA from a different species
Any organism that has DNA from the same species
A tool used by scientists to separate chunks of DNA
What is bioremediation, and how has genetic engineering helped with this process?
Bioremediation is using living things to clean up pollution. Scientists have created GMO bacteria that eat oil.
Bioremediation is using living things to clean up dirt and debris. Scientists have created GMO bacteria that eat mud.
Bioremediation is using living things to destroy a harmful insect population. Scientists have created GMO bacteria that kill insects.
Bioremediation is using living things to control the climate. Scientists have created GMO bacteria that better withstand extreme temperatures.
Using genetically modified pigs to harvest heart valves for humans demonstrates which benefit of genetically modified organisms?
animal models
livestock improvement
tissue and organ donors
pharmaceutical production
When researchers apply for a patent from the U.S. Patent and Trademark Office, for what process are they seeking approval?
creating a transgenic animal
reproductive cloning
therapeutic cloning
nanotechnology
When scientists are able to use an organ from another species for transplantation, this is known as:
a promotor.
pharming.
a xenograft.
a totipotent.
What is the biggest challenge to the successful use of pig organs in human transplants?
The organs are too small
Rejection
Protest by animal rights groups
Expense
) In plant tissue culture technique surface sterilization of explant is made by…………
Hydrochloric acid
Sulphuric acid
Mercury chloride
Nitric acid
The two strand of double helix model of DNA are holdind together by……..
Sugar & nitrogen base
Sugar &phosphate group
Phosphate &nitrogen base
Phosphate &phosphate group
In DNA replication okazaki fragments on lagging are joined together by enzyme
Helicase
Primase
DNA ligase
RNA ligase
Topoisomerase is involved in….. ………………
Producing RNA Primer
Secretion of DNA strand
Producing Nick in DNA
T-RNA formation
Restriction Endonucleases are ……………enzyme
Bacterial
Viral
Fungal
Algal
Agrobacterium cell consist of ………..as independent replication circular DNA
Cosmid
Plasmid
Ti-Plasmid
L-Plasmid
……………Medium is commonly used in tissue culture technique
PDA
M.S.
Agar-Agar
Czapek Dox
The term ‘Totipotency’ was given by _____________.
T.H. Morgan
Haberlandt
Schwann
De Robertis
In PCR reaction .....enyme is used.
Taq polymerase
Reductase
Phosphatse
Dehydrogenase
The grafting in which stock and scion have different diameter is
Splice approach grafting
Tongue grafting
Cleft grating
None of the above
The piece of tissue or organ excised from a plant for culturing in a suitable medium is
Plantlets
Callus
Explant
Embryoids
The ability of an isolated mature plant cell to dedifferentiate to a meristematic state and then to redifferentiate to a whole plant is
Totipotency
The principle applied in tissue culture
Both a & b
None of the above
somatic embrogenesis and organohenesis are
Regeneration methods in tissue culture
Methods of callus formation
Dedifferentiation method
All the above
The embryos formed from somatic cells are
Somatic buds
embryoids
zygote
None of the above
The capacity to generate a whole plant from any cell/explant
micropropagation
Tissue culture
Totipotency
somatic hybridisation
The method of producing thousands of plants through tissue culture is called
somatic hybridiastion
totipotency
micro-propagation
which of these plants are examples of plants grown using tissue culture?
banana/plantain
lemon
mango
apple
china rose
Put it in order:
callus - explant - plantlet
plantlet - callus - explant
explant - callus - plantlet
Haploid content of human DNA has _________base pairs
4.6 x 106
48502
3.3 x 10 9
The area in Biology that uses high speed computational devices for storing enormous amount of data, retrieval and analysis is called____
Bioinformatics
Biotechnology
Biostatistics
Many non human model organisms have also been sequenced through Human Genome project. The nematode among the following is_____
Drosophila
Arabidopsis
Caenorhabditis elegans
The DNA fragments in Human Genome Project were sequenced using automated DNA sequencers that was based on the principle developed by ______
Fredrick Grifith
Watson and Crick
Frederick Sanger
Har Gobind Khorana
Which chromosome in Human Genome has the fewest genes?
Chromosome X
Chromosome Y
Autosome 13
Chromosome 1
Largest known human gene is ______at 2.4 million bases
Desktrophin
Disctropin
Dystrophin
________ contains all the genetic information needed for an organism to grow and survive
gene
genome
proteome
haplotype
What are the variations in specific nucleotides that are linked to human disorders called?
proteomes
haplotypes
SNPs
genome
Genetic variation that are located close together are called
haplotypes
proteomes
HapMap
SNPs
The field of _____uses computers to organize information created by sequencing the human genome
Bioinformatics
genomics
SNPs
gel electrophoresis
Which is an example of a chemical mutagen?
sugar
chocolate
insulin
alcohol
In order for offspring to get a genetic mutation, the mutation must occur in what type of cell?
Cells with no nucleus.
Any body cell after birth.
Cells with no cell wall or cell membrane.
Cells like eggs or sperm cells that are undergoing reproduction.
ATTGAGCC - Mutated
The example above is an example of a
T-G-A-C-C-A
T-G-A-G-C-A
ATG CCA AAT
ATG CCA AAT
ATG CCA AAT
Where do we insert vectors?
bacterial host cells
restriction enzymes
culture media
a and b only
Below are correct statements regarding a probe EXCEPT
A probe is used to search for its complementary sequence in a sample genome.
The probe is labeled with a radioactive or chemical tag that allows its binding to be visualized
A probe is a single-stranded sequence of DNA or RNA
A probe is a double-stranded sequence of DNA or RNA
A genomic library can be built in a
phage library form
plasmid library form
YACs library form
All of above
Below are components/enzymes used in cDNA library construction EXCEPT
using isolated cellular mRNA
using genomic DNA
using the cell's transriptome
using reverse transcriptase
