Tag: biotechnology and its applications

Questions Related to biotechnology and its applications

Which technique made it possible to genetically engineer living organisms ___________________.

  1. Recombinant DNA techniques

  2. Heavy isotope labelling

  3. X-ray diffraction

  4. Hybridisation


Correct Option: A

Which transgenic animal has been given human genes for organ transplantation into humans without risk of rejection?

  1. Cow

  2. Sheep

  3. Goat

  4. Pig


Correct Option: D

Transgenic animals are generally produced for all of the following needs except

  1. Testing of chemical safety

  2. Testing of vaccine safety

  3. Stimulation of pathogenicity

  4. Production of pharmacologically important proteins


Correct Option: C

One of the advantages of developing transgenic mice is that it is very useful

  1. To study vaccine safety

  2. In producing new varieties of mice

  3. In developing a show piece example

  4. In gene targeting


Correct Option: A

Which is correct regarding genetically engineered insulin using E. coli ________________.

  1. Difficult to purify

  2. Obtained in large unlimited quantities

  3. Possibility of transmission of animal diseases

  4. Insulin obtained varies in chemical structure


Correct Option: B

Which best describes a transgenic organism ?

  1. One that act as the donor for DNA to be moved into another organism

  2. One produced by cloning a mutant cell

  3. One that contains a foreign gene and is free- living in the environment

  4. Any genetically modified organism- resulting from laboratory research


Correct Option: C
Explanation:

Transgenic Organism or Genetically Modified Organisms (GMO) is an organism whose genetic material has been altered using genetic engineering techniques. Bacteria are the easiest organism to engineer and have been used for research, food production, industrial protein purification etc. There is a potential to use them for environmental purposes or as medicines.

So, the correct option is 'One that contains a foreign gene and is free-living in the environment'.

Genes found in plants and animals that are of actual or potential value to people are known as

  1. genetic resources

  2. biotic resources

  3. oceanic resources

  4. natural resources


Correct Option: A
Explanation:

There are various genes that are found in animals and pants that are of important use for the humans. These genes are extracted and then introduced into organisms by genetic engineering.

These genes are known as genetic resources.
So, the correct option is 'genetic resources'

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

  1. Escherichia coli

  2. Bacillus subtilis

  3. Staphylococcus aureus

  4. Agrobacterium tumefaciens


Correct Option: D
Explanation:

Agrobacterium tumefacians is used for the production of transgenic plants as it carries a plasmid capable of inducing tumors in plants. These tumors can be artificially induced by transferring the gene into a plant which otherwise is not prone to infection, where the plasmid is genetically engineered for inserting a particular gene, for example, the transfer of delta endotoxin and npt II gene, from Bacillus thuringiensis, in commercially useful plants like cotton to protect it from its predator, the gall worm

So, the correct answer is 'Agrobacterium tumefaciens'

The process of reduction of pollution by use of organisms is called as

  1. Biotechnology

  2. Bioremediation

  3. Bioneutralizer

  4. Biopurifier


Correct Option: B
Explanation:

Bio-remediation is a waste management technique that involves the use of organisms to remove or neutralize pollutants from a contaminated site. Bio-remediation is a treatment that uses naturally occurring organisms to break down hazardous substances into less toxic or non toxic substances. 

Transgenic plants are developed by

  1. Introducing foreign gene

  2. Introducing gene mutations

  3. Deleting certain chromosome

  4. Inhibiting spindle formation


Correct Option: A