Which best describes genetic modification?

It is used to alter crops to become insect-resistant.

How has genetic modification most likely affected safety & availability of fruits & vegi's?

increased the safety & availability of fruits and vegi's.

Which is a benefit of genetically modified foods?

cost of food will decrease, quality of food will increase

Bt toxins doesn't kill Bacillus but it kills insects because this toxin is converted into an active toxin due to the

Alkaline pH of the gut of insects

Which best describes genetic engineering?

adding DNA from one organism to the DNA of another organism

Which statement correctly describes a way that bacteria are used in biotechnology?

Human insulin made by bacteria is injected into humans.

Which was most likely the earliest way biotechnology was studied by humans?

breeding better varieties of crops and livestock

People are worried because they think that

DNA used to modify tomatoes could change DNA of a person

The first gene therapy was given in 1990 to a 4 year old girl with

Adenosine deaminase (ADA) deficiency

Which is a concern of scientists when genetically modifying plants?

There will be a decrease in biodiversity.

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12th, chapter 12, Biotechnology Application by Dr Adarsh Pandey

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Answers

1
Bt toxin
All
Provide resistance in plants to insects
is produced by a bacterium Bacillus thuriengiensis (Bt)
are inserted in few crops known as Bt cotton, Bt corn, Bt rice, Bt Brinjal
2
Which best describes genetic modification?
It improves the removal of pollution from soil and water.
It allows large quantities of medications to be produced.
It is used to alter crops to become insect-resistant.
3
Use of bio-resources by multinational companies without proper authorization from the countries and people concerned is
Biopiracy
Bioillegality
Both
None
4
How has genetic modification most likely affected safety & availability of fruits & vegi's?
increased safety of food and decreased the availability
increased the safety & availability of fruits and vegi's.
decreased the safety & availability of fruits and vegi's
decreased the safety of food and increased availability
5
RNAi or RNA Interference
All
Used to prevent infestation of Meloidegyne incognitia
It involves silencing of specific mRNA due to a complementary dsRNA
Takes place in all eukaryotic organisms as a method of cellular defence
6
Bt toxin is coded by a gene
Proteins encoded by the gene cryIAb controls the corn borer
All
cry1Ac named cry
Proteins encoded by genes cry1Ac & cryIIAb control the cotton bollworms
7
Early diagnosis techniques are
ELISA
PCR
RDT
All
8
GM has been used to create tailor made plants to supply alternative resources to industries in the form of
All
Starches
Fuels
Pharmaceuticals
9
Which is a benefit of genetically modified foods?
cost of research is included in the cost to the consumer
Genetically modified foods do not have to be studied
Genetically modified food are resistant to disease & drought
cost of food will decrease, quality of food will increase
10
Which person would benefit most from biotechnology?
a farmer
a cook
an automobile engineer
an architect
11
If the gene isolate from marrow cells producing ADA is introduced into cells at early embryonic stages, it
Could be a permanent cure
Could Not be a permanent cure
Both
None
12
A nematode, Meloidegyne incognitia infects the ................ plant and causes a great reduction in yield
Leaves of Tobacco
Roots of Tobacco
Internode of Tobacco
Stem of Tobacco
13
Mature Insulin doesn't contain
2 short polypeptide chains A and B
All
C peptide
Disulfide bonds
14
ADA deficiency can be treated by
Enzyme replacement therapy
Both
None
Bone marrow transplantation
15
Insulin
Consists of 2 short polypeptide chains: Chain A and Chain B
is synthesized as prohormone containing extra stretch called the C peptide
All
Both chains are linked together by disulfide bridges
16
Genetically Engineering Approval Committee (GEAC) will make decisions regarding the
Validity of GM research
Both
Safety of introducing GMO for public services
None
17
Which career field is most closely related to biotechnology?
political science
medicine
meterology
journalism
18
Picture shows
Host plant generated dsRNA triggers protection
Both
Protection against nematode infestation
None
19
Firat transgenic cow , Rosie, produced
All
Human protein enriched milk
Milk contained the human alpha-lactalbumin
in 1997
20
Golden rice is Vitamin ......... enriched rice
D
B
A
C
21
There are an estimated ......... varietiess of rice in India alone.
200
2000
200000
20000
22
Bt toxins doesn't kill Bacillus but it kills insects because this toxin is converted into an active toxin due to the
Both
Acidic pH of the gut of insects
Alkaline pH of the gut of insects
None
23
Critical research areas of Biotechnology are
Probiding best catalyst in the form of improved organism
Downstream ptocessing technologies to purify the protein/organic compound
All
Creating optimal conditions through engineering for a catalyst to act
24
ELISA is based on the principle of
Antigen interaction
All
Antigen-Antibody interaction
Antibody interaction
25
What type of science allows us to alter the DNA of a plant ?
biotechnology
geology
biology
physiology
26
The source of complementary dsRNA in RNAi could be
Or mobile genetic elements(transposons) that replicate via RNA intermediate
Both
None
From an infection by viruses having RNA genomes
27
Picture shows maturation of pro-insulin into insulin
NO
All
YES
Both
28
Which are most closely related to biotechnology?
medicine and agriculture
construction and engineering
water treatment and electricity generation
communication and information technology
29
Which is a positive result of the use of biotechnology in agriculture?
increased use of preservatives
increased cost
increased use of pesticides
increased yield
30
There are ....... documented varieties of Basmati are grown in India.
37
17
7
27
31
Picture shows
Both
Cotton ball destroyed by bollworms
None
A fully mature cotton ball
32
Which molecule from humans is inserted into bacteria to cause them to produce insulin?
carbohydrates
lipids
DNA
proteins
33
Gene therapy is a collectiom of methods that allows correction of a gene defect that has been diagnosed in a
None
Embryo
Both
Child
34
Which best describes genetic engineering?
All
adding DNA from one organism to the DNA of another organism
cutting out pieces of DNA from an organism
making artificial DNA in the laboratory from chemicals
35
Which biotech process is most likely to be used by agricultural to increase food availability?
crop rotation
spray of organic herbicide
use of transgenic crops
crop diversification
36
Transgenic models exists for many humans diseases like
Alzheimer's
Cystic fibrosis
All
Cancer
37
Which statement correctly describes a way that bacteria are used in biotechnology?
Human insulin made by bacteria is injected into humans.
Bacterial genes that code human insulin are put into cells
Bacteria make human cells that make insulin.
Bacteria that make insulin are implanted in humans.
38
Gene therapy involves
Now these lymphocytes are returned to the patient
A functional ADA cDNA is introduced into lymphocytes
All
Lymphocytes from patients are grown in culture outside the body
39
Which organisms are used to manufacture human insulin?
amoebas
protozoans
algae
bacteria
40
More than 95% of all existing Transgenic animals are
Mice
Cows
Rabbits
Pigs
41
GMOs
All
Reduced reliance on chemical pesticides
made crops more tolerant to abiotic stresses
helped to reduce post harvest losses
42
Which was most likely the earliest way biotechnology was studied by humans?
discovering the cause of hereditary diseases
finding evidence of crimes
breeding better varieties of crops and livestock
making new medicines to cure sickness
43
People are worried because they think that
DNA used to modify tomatoes could change DNA of a person
All
Genetically-modified tomatoes are more expensive
Genetically-modified tomatoes don't taste as good.
44
Which is an application of genetic engineering?
producing cells from nonliving material
destroying all bacteria
creating synthetic insulin
preventing weeds from spreading to farmland
45
The green revolution succeeded in .......the food supply.
Tripling
None
Both
Doubling
46
PCR is used to detect
Both
None
Mutations in genes in suspected cancer patients
HIV in suapected AIDS patients
47
Transgenic are used in
Treatment of Cystic fibrosis
Treatment of PKU
Production of alpha-1-antitrypsin used to treat emphysema
All
48
The first gene therapy was given in 1990 to a 4 year old girl with
Adenosine deaminase (ADA) deficiency
None
Protease deficiency
Both
49
Which is a concern of scientists when genetically modifying plants?
There will be a decrease in biodiversity.
There will be a decreased revenue for pesticide manufacturer
Plants will have a longer growing season.
Plants will pass on diseases to animals.
50
Transgenic .......... are being used to test the safety of the polio vaccine
Gorilla
Monkey
Human
Mice

12th, chapter 12, Biotechnology Application by Dr Adarsh Pandey Flashcards | StudBud