Tag: biotechnology and its applications

Questions Related to biotechnology and its applications

The transgenic plant 'Flavr Savr' tomato carries an artificial gene for

botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

  1. Delayed ripening process

  2. Longer shelf life

  3. Enhanced flavour

  4. All of these.

Show answer
Correct Option: D
Explanation:

Flavr Savr is a genetically modified tomato  for human consumption. The transgenic plant 'Flavr Savr' tomato carries an artificial gene for slowing down the ripening process of the tomato and thus prevent it from softening and retains its natural colour , flavour and its shelf life. 

So, the correct option is 'Option D' .

Match column I containing transgenic organisms with their specific characteristics in column II and select the correct answer from the given codes.
Column I                   Column II
A. Golden rice        (i) Protein-enriched milk
B. Bt cotton            (ii) Increased shelf life
C. Flavr Savr          (iii) Enriched with vitamin A
D. Rosie cow         (iv) High yield and pest resistant

botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

  1. A-(iii), B-(iv), C-(ii), D-(i)

  2. A-(iii), B-(ii), C-(iv), D-(i)

  3. A-(ii), B-(iv), D-(iii), D-(i)

  4. A-(i_, B-(iv), C-(ii), D-(iii)

Show answer
Correct Option: A
Explanation:
Column I                   Column II
A. Golden rice        (iii) Enriched with vitamin A ( It is the improved variety of rice enriched with vitamin A).
B. Bt cotton             (iv) High yield and pest resistant ( Bt toxin are the toxins that kills harmful pests and responsible for high yield) .
C. Flavr Savr            (ii) Increased shelf life ( It is the improved variety of tomato that has long shelf life and causing them to soften ).
D. Rosie cow            (i) Protein-enriched milk ( Rosie is the first transgenic cow produced human protein rich milk i.e; 2.4 g per litres containing alpha-lactalbumin) .

So, the correct option is 'Option A' . 

Transgenic plants are the ones

botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

  1. Grown on artificial medium after hybridisation in the field

  2. Produced after protoplast fusion in artificial medium

  3. Produced by somatic embryo on artificial medium

  4. Generated by introducing foreign DNA into a cell and regenerating plant from that cell

Show answer
Correct Option: D

In which variety of rice a gene synthesizing vitamin A (Beta Carotene) has been introduced? 

botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

  1. Jaya

  2. Golden Rice

  3. Ratna

  4. lndrayani

Show answer
Correct Option: B
Explanation:

Golden rice is a variety of rice (Oryza sativa) produced through genetic engineering to biosynthesize beta-carotene, a precursor of vitamin A, in the edible parts of rice.

Golden/transgenic Rice is rich in ____________.

botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

  1. Vitamin A

  2. Vitamin B

  3. Vitamin C

  4. Vitamin D

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Correct Option: A

The resistant variety of rice to bacterial blight is

botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

  1. Jaya

  2. TMK-6

  3. IR-20

  4. IR-8

Show answer
Correct Option: D
Explanation:

  • Xanthomonas campestris causes bacterial blight of rice which is one of the most important diseases of rice in most of the rice-growing countries. Bacterial blight of rice has high epidemic potential and is destructive to high-yielding cultivars in both temperate and tropical regions especially in Asia.
  • IR8 is a high-yielding semi-dwarf rice variety developed by the International Rice Research Institute (IRRI) in the early 1960s. It is the resistant variety of rice to bacterial blight.
So, the correct answer is 'IR-8'

Hybrid of potato and tomato is

botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

  1. Tomato

  2. Pomato

  3. Potamato

  4. None of the above

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Correct Option: B

Transgenic plants are developed by

botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

  1. Introducing foreign genes

  2. Introducing gene mutations

  3. Deleting certain chromosome parts

  4. Stopping spindle formation

Show answer
Correct Option: A

In an experiment the gene of bioluminescence from firefly has been successfully transferred into a plant as a result of which it started to glow. In the terminology of the molecular genetics, the plant is called ___________.

botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

  1. Firefly plant

  2. Hybrid plant

  3. Transgenic plant

  4. Bioluminescent plant

Show answer
Correct Option: C
Explanation:

Transgenic plants are plants that have been genetically engineered, a breeding approach that uses recombinant DNA techniques to create plants with new characteristics. They are identified as a class of genetically modified organism (GMO). In this case, firefly's gene is transferred to the plant, hence the plant is called transgenic plant.


So, the correct answer is 'Transgenic plant'.

Give example of a GM crop that can tolerate abiotic stress. 

botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

  1. Transgenic tomato

  2. Bt-Brinjal

  3. Golden rice

  4. Pomato

Show answer
Correct Option: A
Explanation:

Transgenic tomato has been genetically engineered to have resistance to abiotic stress.

By Brinjal has pest resistance.
Golden rice is genetically engineered to have higher nutritional value.
Pomato is grafted from shoot of tomato plants and root of potato plant to obtain two products from the same plant.
So the correct answer is ' Transgenic tomato'.