Tag: zoology

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Questions Related to zoology

Multiple choice zoology biotechnology and its applications transgenic animals transgenic organisms applications of biotechnology

The injecting of foreign gene in an animal gives rise to 

  1. Transgenic animal

  2. Transgenic organism

  3. Transgenic plant

  4. Transcribed animal
Reveal answer Fill a bubble to check yourself
A Correct answer
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. 

Multiple choice zoology biotechnology and its applications transgenic animals transgenic organisms applications of biotechnology

Which of the following is the key principle of bioethics?

  1. Animal rights

  2. Environmental ethics

  3. Autonomy

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bioethics encompasses various principles including animal welfare, environmental impact, and individual autonomy in research. All listed options are recognized areas of concern within the broader field of bioethics.

Multiple choice zoology biotechnology and its applications transgenic animals transgenic organisms applications of biotechnology

The gene transfer in eukaryotic cells is also known as 

  1. Transformation

  2. Transfection

  3. Transduction

  4. Both A and B
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Transformation is typically used for bacteria, while transfection refers to the introduction of foreign nucleic acids into eukaryotic cells. Transduction specifically refers to virus-mediated gene transfer.

Multiple choice zoology biotechnology and its applications transgenic animals transgenic organisms applications of biotechnology

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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

Multiple choice zoology biotechnology and its applications transgenic animals transgenic organisms applications of biotechnology

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

Cloning technology, particularly somatic cell nuclear transfer, often results in high rates of developmental failures, birth defects, and premature aging in clones. These issues remain a significant barrier to widespread application.

Multiple choice zoology biotechnology and its applications transgenic animals transgenic organisms applications of biotechnology

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

A transgenic animal is defined by the stable integration of foreign DNA into its genome, which is typically achieved by injecting the DNA into the zygote, ensuring the gene is present in all cells of the resulting organism.

Multiple choice zoology biotechnology and its applications transgenic animals transgenic organisms applications of biotechnology

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

Pigs are frequently used in research for xenotransplantation because their organ size and physiology are relatively similar to humans, and they can be genetically modified to reduce immune rejection.