Tag: biotechnology and its applications

Questions Related to biotechnology and its applications

Transgenic plants are

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

  1. Produced by a somatic embryo in an artificial medium.

  2. Generated by introducing foreign DNA into a cell and regenerating a plant form.

  3. Produced after protoplast fusion in an artificial medium.

  4. Grown in an artificial medium after hybridization in the field.

Show answer
Correct Option: B
Explanation:

A transgenic plant is a plant, with an insertion of DNA from another organism. This technology can be used as a tool for researchers to insert useful genes as a means of improving crops.

Thus, the correct answer is option B.

Golden rice is a promising transgenic crop. When released for cultivation, it will help in

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

  1. Herbicide tolerance

  2. Producing a petrol-like fuel fro m rice

  3. Alleviation of vitamin A deficie ncy

  4. Pest resistance

Show answer
Correct Option: C

Which of the following is an improved variety of wheat crop?

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

  1. Roja-64 A

  2. Sonalika

  3. Sonara-64

  4. All of these

Show answer
Correct Option: D
Explanation:
Roja-64 A, Sonalika, Sonara-64 all are improved variety of wheat crop.
So, the correct option is 'All of these'

Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin 'A' deficiency?

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

  1. Falver Savr' tomato

  2. Canolla

  3. Golden rice

  4. Bt-Brinjal

Show answer
Correct Option: C
Explanation:

Golden rice is a variety of Oryza sativa rice produced through genetic to biosynthesize beta-carotene, a precursor of vitamin-A in the edible part of rice. The research that led to golden rice was conducted with the goal of helping children who suffer from vitamin A.

So, the correct option is 'Golden rice'.

Golden rice is rich in

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

  1. vitamin B

  2. vitamin A

  3. both (a) and (b)

  4. none of these

Show answer
Correct Option: B
Explanation:

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

So, the correct option is vitamin A.

Basic principle of developing transgenic plants and animals is to introduce the gene of interest into the nucleus to.

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

  1. somatic cell

  2. vegetative cell

  3. germ cell

  4. body cell

Show answer
Correct Option: C
Explanation:

The principle of developing transgenic plants and animals is to introduce the gene of interest into the nucleus to germ cell.

So, the correct option is 'Germ cell'.

Which one of the following bacteria is used for production of transgenic plants?

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

  1. Escherichia coli

  2. Bacillus thuringiensis

  3. Staphylococcus aureus

  4. Agrobacterium tumefaciens

Show answer
Correct Option: B
Explanation:

Bt corn varieties, for example, contain a gene from a bacterium found in the soil that causes the transgenic corn to produce an insecticidal protein.

So, the correct option is 'Bacillus thuringiensis'.

Golden rice is a genetically modified crop plant where the incorporated gene is meant for biosynthesis of.

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

  1. Vitamin-B

  2. Vitamin-C

  3. Omega-$3$

  4. Vitamin-A

Show answer
Correct Option: D
Explanation:

golden rice is a genetically modified crop plant where the incorporated gene. Golden rice is a variety of rice produced through genetic engineering to biosynthesize beta-carotene, a precursor of vitamin A, in the edible parts of rice.

So, the correct option is 'Vitamin A'.

RNA interference which is employed in making tobacco plant resistant to Meloidegyne incognita is essentially involved in

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

  1. preventing the process of replication of DNA

  2. preventing the process of translation of mRNA

  3. preventing the process of splicing of hnRNA

  4. preventing the process of transcription

Show answer
Correct Option: B
Explanation:

RNA interference is a gene-silencing process that blocks the expression of genes in the parasite when it enters the host's body.RNA is a method adopted to prevent infestation of roots of tobacco plants by a nematode Meloidogyne incognita. In RNA, a complementary RNA binds to mRNA to form a ds RNA that cannot translate and hence, its expression is blocked.

So, the correct option is 'Preventing the process of translation of mRNA'.

Which part of the tobacco plant is infected by Meloidogyne incognita?

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

  1. Leaf

  2. Stem

  3. Root

  4. Flower

Show answer
Correct Option: C
Explanation:

Roots of the tobacco plants are infected by Meloidogyne incognita. RNA I method is used to develop resistance in these plants against infection.

So, the correct option is 'Root'.