Biotechnology and its Applications Test

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Biotechnology and its Applications Test - 37

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Weekly Quiz Competition

Question 1
1 / -0

Diseases that are caused by the malfunction of a phototropic gene are:

A
Cured by dietary restrictions

B
Reversible by gene therapy

C
Called as syndromes

D
Extremely rare

Solution

Phototropism is the growth of an organism which responds to a light stimulus. It is most often observed in plants, but can also occur in other organisms such as fungi. The cells on the plant that are farthest from the light have a chemical called auxin that reacts when phototropism occurs. Gene therapy is an experimental technique that uses genes to treat or prevent disease. In the future, this technique may allow doctors to treat a disorder by inserting a gene into a patient's cells instead of using drugs or surgery.
So the correct option is 'Reversible by gene therapy'.
Question 2
1 / -0

Breeding for disease resistance requires

A
A good source of resistance

B
Planned hybridisation

C
Disease test

D
All of the above
Solution
To prevent the plants from bacterial, fungal, viral infections, cultivars resistant to diseases is developed which reduce the dependence on fungicide or insecticide. Method of breeding for disease resistant involves:-
Screening of germplasm for resistance sources.
Hybridization of the selected parent.
Selection and evaluation of hybrids.
Testing and release of new varieties.
So, the correct option is 'all of the above'.
Question 3
1 / -0

Which of the following group of preservatives prevent fat/oil containing food from developing a foul smell?

A
Flavourants

B
Colorants

C
Sweeteners

D
Antioxidants

Solution

Antioxidants prevent or slow down the oxidation of fat/oil which otherwise go rancid to emit a foul odor. This they are used as preservatives in oil or fat containing food.
So, the correct option is 'Antioxidants'.
Question 4
1 / -0

A patent for "use of turmeric in wound healing " was granted by US patent office, through turmeric has been used in India for centuries this is an example of

A
Biopatent

B
Biopiracy

C
Bioweapon

D
Bioremediation

Solution

The commercial exploitation or monopolization of biological or genetic material, as medicinal plant extracts, usually without compensating the indigenous peoples or countries from which the material or relevant knowledge is obtained is called as biopiracy. In 1995, the United States awarded patent on turmeric to University of Mississippi medical center for wound healing property. The claimed subject matter was the use of "turmeric powder and its administration", both oral as well as topical, for wound healing. An exclusive right has been granted to sell and distribute. The Indian Council for Scientific and Industrial Research (CSIR) had objected to the patent granted and provided documented evidences of the prior art to USPTO. Though it was a well known fact that the use of turmeric was known in every household since ages in India, it was a herculean task to find published information on the use of turmeric powder through oral as well as topical route for wound healing. Due to extensive researches, 32 references were located in different languages namely Sanskrit, Urdu and Hindi.
So the correct option is 'biopiracy'.
Question 5
1 / -0

Foliar spray of which element is effective?

A
Fe

B
Mn

C
Cu

D
All the above

Solution

Foliar spray generally contains the micronutrients of Mn because there exist strong cuticular affinity for the manganese.
Hence, the correct answer is 'Mn'
Question 6
1 / -0

Genetic modification (GM) has been used to

A
Create tailor made plants

B
Supply alternative resources to industries

C
Enhanced nutritional value of food

D
All of the above

Solution

Genetic modification by the introduction of the recombinant DNA has resulted in the creation of tailor-made plants that can be pest resistant, drought resistant, herbicide resistant, etc. It has supplied alternative to dairy farm industries by modifying plants and animals. It has also resulted in the creation of biofortified crops that have enhanced nutritional values of food.
Hence, the correct answer is 'All of the above'
Question 7
1 / -0

An unfair claim to novelty and invention come under

A
Economic piracy

B
Resource piracy

C
Intellectual piracy

D
Theft

Solution

Piracy is the unauthorized claim of copyrighted content or product or resources. It affects the economy of that country. If there is an unauthorized claim of novelty or patent and invention is called intellectual piracy.
So, the correct answer is 'Intellectual piracy'.
Question 8
1 / -0

a functional ADAcDNA can be introduced into cells of the patients receiving gene therapy by using vector constituted by

A
E.coil

B
Reoviridae

C
Retrovirus

D
Agrobacterium

Solution

The deficiency of the purine salvage enzyme adenosine deaminase is associated with severe B and T-cell dysfunction. In order to investigate the ADA molecule, gene therapy using E.coli, cDNA clones encoding ADA gene sequences are obtained.
So the correct option is 'E.coli'.
Question 9
1 / -0

A DNA sequencing reaction was performed with the fragment $$5-XXXGCGATCGYYYY-3'$$ as the template, dideoxy GTP, all the four $$dNTPs$$, and the required primers and enzyme. $$XXXX$$ and $$YYYY$$ in the given DNA fragment represent primer binding sites. The set of fragments obtained during the reaction will be (the primers are not shown in the amplified fragments).

A
$$5'-CGATCGC-3'$$ only

B
$$5'-CG-3', 5'-CGCTAG-3', 5'-CCCTAGC-3'$$

C
$$5'-CG-3', 5'-CGATCG-3', 5'-CGATCGC-3'$$

D
$$5'-G-3', 5'-GCG-3', 5'-GCGATCG-3'$$

Solution

A DNA sequencing reaction was performed with the fragment 5−XXXGCGATCGYYYY−3′ as the template, dideoxy GTP, all the four dNTPs, and the required primers and enzyme. XXXX and YYYY in the given DNA fragment represent primer binding sites. The set of fragments obtained during the reaction will be CGATCGC, because if primer is attache to the XXXX binding site it polymerization starts and its complimentary fragment is CGATCGC.
Question 10
1 / -0

Why does a patient with ADA deficiency require a repeated infusion of genetically engineered lymphocytes?

A
They are unable to produce WBC.

B
Immune response is hampered

C
Blood coagulation donot take place.

D
Both A and B
Solution
- ADA deficiency is also called adenosine deaminase deficiency. It is an autosomal recessive metabolic disorder. It results in immunodeficiency.
- The immune response of an individual is hampered. Its symptoms include pneumonia, chronic diarrhea, skin rashes.
- It can be treated by a bone marrow transplant in which healthy immune cells are used to replace the defective immune cells.
- Other treatment includes a repeated infusion of genetically engineered peripheral blood lymphocytes as they are unable to produce WBC.
Thus, the correct answer is option D.

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Re-Attempt Weekly Quiz Competition

Biotechnology and its Applications Test - 37

Result

Biotechnology and its Applications Test - 37

Score

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SHARING IS CARING

Question 1

Cured by dietary restrictions

Reversible by gene therapy

Called as syndromes

Extremely rare

Solution

Question 2

A good source of resistance

Planned hybridisation

Disease test

All of the above

Solution

Question 3

Flavourants

Colorants

Sweeteners

Antioxidants

Solution

Question 4

Biopatent

Biopiracy

Bioweapon

Bioremediation

Solution

Question 5

Fe

Mn

Cu

All the above

Solution

Question 6

Create tailor made plants

Supply alternative resources to industries

Enhanced nutritional value of food

All of the above

Solution

Question 7

Economic piracy

Resource piracy

Intellectual piracy

Theft

Solution

Question 8

E.coil

Reoviridae

Retrovirus

Agrobacterium

Solution

Question 9

$$5'-CGATCGC-3'$$ only

$$5'-CG-3', 5'-CGCTAG-3', 5'-CCCTAGC-3'$$

$$5'-CG-3', 5'-CGATCG-3', 5'-CGATCGC-3'$$

$$5'-G-3', 5'-GCG-3', 5'-GCGATCG-3'$$

Solution

Question 10

They are unable to produce WBC.

Immune response is hampered

Blood coagulation donot take place.

Both A and B

Solution

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