Tag: zoology

Questions Related to zoology

The injecting of foreign gene in an animal gives rise to 

  1. Transgenic animal

  2. Transgenic organism

  3. Transgenic plant

  4. Transcribed animal


Correct Option: A
Explanation:

Transgenic animals are animals that have had a foreign gene deliberately inserted into their genome. Such, animals are most commonly created by micro-injection of DNA into the pronuclei of a fertilized egg which is implanted into the oviduct of a pseudopregnant surrogate mother. This results in the recipient giving birth to genetically modified offspring. 

Which of the following is the key principle of bioethics?

  1. Animal rights

  2. Environmental ethics

  3. Autonomy

  4. All of the above


Correct Option: D

The gene transfer in eukaryotic cells is also known as 

  1. Transformation

  2. Transfection

  3. Transduction

  4. Both A and B


Correct Option: B

Genetic engineering helps to degrade .......... in the food.

  1. Organic acids

  2. Allergens

  3. Microflora

  4. Minerals


Correct Option: B
Explanation:

Genetic engineering has great potential for improving the safety of plant-based foods by eliminating allergenic components. 

Identify the correct application of biotechnology in food processing.

  1. Conversion of perishable raw material into the nonperishable food product

  2. Conversion of nonperishable raw material into food product

  3. Conversion of decayed food into useful food products

  4. None of these


Correct Option: A
Explanation:

Answer is option A i.e. "Conversion of perishable raw material into the nonperishable food product"
Biotechnology in the food processing sector makes use of micro-organisms for the preservation of food. Food processing is a process by which perishable raw materials are converted to edible and  non-perishable foods and beverages, which have a longer shelf life.

Maximum number of existing transgenic animals is of

  1. Pig

  2. Fish

  3. Mice

  4. Cow


Correct Option: C

Current cloning technology is limited because

  1. It inhibits the growth of native animals.

  2. It spreads the disease to the other animals.

  3. All cloned may suffer from developmental abnormalities.

  4. None of the above


Correct Option: C

Biofortification is an example of application of

  1. Bioinformatics

  2. Biotechnology

  3. Sustainable development

  4. Organic farming


Correct Option: B

Which of the following correctly defines a transgenic animal

  1. An animal which has foreign DNA and RNA in some of its cells because of an injection of DNA and RNA into the nucleus of the zygote from which it is developed

  2. An animal which has foreign DNA in all its cells because of an injection of DNA into the nucleus of the zygote from which it is developed

  3. An animal which has foreign DNA in some of its cells because of an injection of DNA into the nuclei of some of the cells of the blastocyst

  4. An animal which has foreign DNA in.all its cells because of an injection of DNA into the nuclei of some of the cells in adulthood


Correct Option: B

Which transgenic animal have been given human genes for organ transplantation into human without risk of rejection

  1. Cow

  2. Sheep

  3. Goat

  4. Pig


Correct Option: D