Tag: zoology

Questions Related to zoology

Which of the following is not a genetically modified organism (GMO)?

zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

  1. Golden rice

  2. Rosie

  3. Dogie

  4. Dolly

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Correct Option: C
Explanation:
A genetically modified organism is any organism whose genetic engineering techniques. GMOs are used to produce many medications and genetically modified foods and are widely used in scientific research and the production of other goods. For example, Golden rice, Rosie, and Dolly.
So the correct answer is 'Dogie'.

What are some advantages biotechnology has brought to mankind?
1. Better yield of crops
2. Decrease usage of pesticides
3. Pest resistant crops
4. Producing crops with better nutritional value

zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

  1. 1 only

  2. 2 only

  3. 1 and 3 only

  4. 1, 2, 3 and 4

Show answer
Correct Option: D
Explanation:

Biotechnology is an applied branch, which involves the use of bioanalytical techniques. This branch is mainly associated with the genetic engineering, which helps in the modification of organisms.

Therefore the right answer is option "D, 1,2,3 and 4".

Extensively used tool in genetic engineering of crop plants is _________________.

zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

  1. Agrobacterium mediation

  2. Protoplast fusion

  3. Transposons

  4. Microinjection

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Correct Option: A
Explanation:

Transposons are basically jumping genes. Protoplast fusion is a technique of creating hybrids, the mating of one species protoplast and other species protoplast. While microinjection is a method of injecting our interest of DNA directly into the host. We can achieve transformation by microinjection too but Agrobacterium-mediated transformation is most commonly used. Agrobacterium tumefaciens is a naturally occurring soil bacterium causing crown gall disease and has the ability to introduce new genetic material into the plant cell. 

Hence, the correct answer is 'Agrobacterium-mediation'.

How many statements given are correct with respect to genetically modified plants.

zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

  1. Golden rice is an example of genetically modified crop

  2. GM crops has been used to create tailor made plants

  3. GM crops made crops more tolerant to abiotic stresses

  4. Jatropha is also an example of GM-crop

Show answer
Correct Option: A

Which of the following is true about the advantages of genetically modified crops?
(i) It increases the quality and quantity of food.
(ii) It helps overcome the world shortage of food and prevent famines
(iii) It produces disease-resistant crops.

zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

  1. Only (i) and (ii)

  2. Only (i) and (iii)

  3. Only (ii) and (iii)

  4. (i), (ii) and (iii)

Show answer
Correct Option: D
Explanation:

Genetically modified crops are the crop which consists modified DNA sequences. The modifies sequence expresses itself and increases the quality and quantity of food and promotes the development of disease resistant varieties.

So, the correct answer is option D.

A GM crop is

zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

  1. Irradiated crop

  2. Transgenic crop

  3. Raised on green manure

  4. A green manure

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Correct Option: B
Explanation:
The correct option is B.
GM (Genetically modified crops) are plants which has been modified using genetic engineering methods. In most cases, the aim is to introduce a new trait to the plant. GM crop is a transgenic crop.

Introduction of genetically modified food is not desirable because

zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

  1. It will affect economy of developing countries.

  2. The products are less tasty.

  3. They are costly.

  4. There is danger of entry of toxins and virus in food.

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Correct Option: D

GMO technology is useful for ______________.

zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

  1. Making crops more tolerant to abiotic stresses

  2. Helping to reduce post-harvest losses

  3. Enhancing nutritional value of food

  4. All of the above

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Correct Option: D

Genetically engineered male sterile crop plants may be produced by inserting

zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

  1. Bt toxin gene

  2. Barnase gene

  3. Lectin gene

  4. Chitinase gene

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Correct Option: B

Which one of the following pairs is not correctly matched?

zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

  1. Bioremediation - Microbe mediated cleaning of pollution

  2. Southern blot - DNA hybridization

  3. Western blot - Dideozy method of DNA sequencing

  4. Northern blot - Sequencing of RNA

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Correct Option: A