Tag: applications of biotechnology

Questions Related to applications of biotechnology

Main objective of production of herbicide resistant GM crops is to?

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

  1. Encourage eco-friendly herbicides

  2. Reduce herbicide accumulation in food articles for health safety

  3. Eliminate weeds from the field without the use of manual labour

  4. Eliminate weeds from the field without the use of herbicides

Show answer
Correct Option: C
Explanation:

Herbicide-tolerant plants are plants whose growth and development are not significantly affected by herbicides used on the weeds growing around them. 

These types of plants were developed to help farmers control weeds without the use of manual labour that competes with crops for soil, space, water, and sunlight. 
So, the correct option is 'Eliminate weeds from the field without the use of manual labour'.

How can we increase the food production?

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

  1. By agrochemical based agriculture

  2. By Organic agriculture

  3. By genetically engineering crop- based agriculture.

  4. All of the above

Show answer
Correct Option: C
Explanation:

Organic agriculture will help improve food production as it involves production system that relies on ecological processes, biodiversity and cycles adapted to local conditions and does not involve the use of pesticides, fertilizers or other genetically modified organisms etc. Use of genetically modified crop-based agriculture techniques, on the other hand, will help increase yield and also provide the plants with resistance to diseases. 


So, the correct option is 'By genetically engineering crop- based agriculture'. 

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

Show answer
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

Show answer
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

Show answer
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.

Show answer
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

Show answer
Correct Option: D