Tag: biotechnology in agriculture

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Questions Related to biotechnology in agriculture

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

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

  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)
Reveal answer Fill a bubble to check yourself
A Correct answer
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' . 
Multiple choice botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

Transgenic plants are the ones

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

Transgenic plants are defined by the stable integration of foreign DNA (transgenes) into their genome, which is then expressed in the plant cells.

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

The resistant variety of rice to bacterial blight is

  1. Jaya

  2. TMK-6

  3. IR-20

  4. IR-8
Reveal answer Fill a bubble to check yourself
D Correct answer
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'

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

Transgenic plants are developed by

  1. Introducing foreign genes

  2. Introducing gene mutations

  3. Deleting certain chromosome parts

  4. Stopping spindle formation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Transgenic plants are created by the introduction of foreign genes (transgenes) into the plant genome using techniques like Agrobacterium-mediated transformation or biolistics.

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

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 ___________.

  1. Firefly plant

  2. Hybrid plant

  3. Transgenic plant

  4. Bioluminescent plant
Reveal answer Fill a bubble to check yourself
C Correct answer
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'.

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

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

  1. Transgenic tomato

  2. Bt-Brinjal

  3. Golden rice

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

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

Which of the following is a mismatch regarding the transgenic plant and its application?

  1. Golden rice $\Rightarrow$ Vitamin A enriched rice
  2. Flavr savr tomato $\Rightarrow$ Delay ripening
  3. Tobacco $\Rightarrow$ Herbicide resistant
  4. Bt corn $\Rightarrow$ Resistant to nematode
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In Tobacco because of  biotechnology, transgenic plants produced which have low nicotine in their leaves.