Tag: zoology

Quizzes (289) Questions (5869)

Questions Related to zoology

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

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

  1. Golden rice

  2. Rosie

  3. Dogie

  4. Dolly
Reveal answer Fill a bubble to check yourself
C Correct answer
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'.
Multiple choice zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

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

  1. 1 only

  2. 2 only

  3. 1 and 3 only

  4. 1, 2, 3 and 4
Reveal answer Fill a bubble to check yourself
D Correct answer
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".

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

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

  1. Agrobacterium mediation

  2. Protoplast fusion

  3. Transposons

  4. Microinjection
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.

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

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.

  1. Only (i) and (ii)

  2. Only (i) and (iii)

  3. Only (ii) and (iii)

  4. (i), (ii) and (iii)
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

A GM crop is

  1. Irradiated crop

  2. Transgenic crop

  3. Raised on green manure

  4. A green manure
Reveal answer Fill a bubble to check yourself
B Correct answer
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.
Multiple choice zoology applications of biotechnology genetically modified organism transgenic organisms genetic modification and biotechnology

Introduction of genetically modified food is not desirable because

  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.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A significant concern regarding the introduction of genetically modified food is the potential for horizontal gene transfer or the unintended presence of allergens or toxins that could pose health risks to consumers.

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

GMO technology is useful for ______________.

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

GMO technology is versatile and is used for improving crop resilience to abiotic stresses (like drought or salinity), reducing post-harvest losses (like delayed ripening), and enhancing nutritional content (like Golden Rice).

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

Genetically engineered male sterile crop plants may be produced by inserting

  1. Bt toxin gene

  2. Barnase gene

  3. Lectin gene

  4. Chitinase gene
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Barnase gene, when expressed in the tapetum cells of plants, leads to the destruction of these cells, resulting in male sterility. This is a common technique used in hybrid seed production.