Tag: transgenic animals

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Questions Related to transgenic animals

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

Which of the following is a function of a selectable marker?

  1. Provides resistance against a substrate

  2. Inhibits the growth of normal cell in a culture

  3. Help to create a chromosome map

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

Selectable markers provide a survival advantage (like antibiotic resistance) to transformed cells while inhibiting the growth of non-transformed cells in a selective medium.

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

Which of the following ethical issues should be considered for developing transgenic animal?

  1. Yielding capacity

  2. Long term effect on environment

  3. Quality of breed

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

The ethical issues considered for developing transgenic animals are yielding capacity, long term effect on the environment, quality of the breed. They include bioethicists, environmentalists. the results of genetic alteration would be suffered and hence such experimentation should be banned (Eg, a pig with no legs)

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

Ethics are associated with genetic engineering because of ___________.

  1. Human dignity

  2. Commercialization of genetic research

  3. Fair use of genetic information

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

The genetic engineering of animals has increased significantly in recent years, and the use of this technology brings with it ethical issues, some of which relate to animal welfare — defined by the World Organisation for Animal Health as “the state of the animal.

How an animal is coping with the conditions in which it lives”.
These issues need to be considered by all stakeholders, including veterinarians, to ensure that all parties are aware of the ethical issues at stake and can make a valid contribution to the current debate regarding the creation and use of genetically engineered animals. 

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

What was the amount of Alpha-lactalbumin in the milk of transgenic cow?

  1. $2.4$ grams/lit
  2. $4.2$ grams/lit
  3. $3.4$ grams/lit
  4. $4.3$ grams/lit
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Alpha-lactalbumin is a major milk whey protein. It is involved in the process of lactose synthesis. The first transgenic cow was produced with human alpha-lactalbumin gene introduced into it. The milk of transgenic cow contained about 2.4 grams/lit of human protein.

Thus, the correct answer is '2.4 grams/lit.'

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

All of the followings are associated with replacement principle of animal biotechnology except

  1. Cell culture

  2. Computer models

  3. Epidemiological studies

  4. Improving experimental technique
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The replacement principle involves using non-animal alternatives. Improving experimental techniques is part of the 'Refinement' principle, not 'Replacement'.

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

First transgenic mouse grew twice the normal size after drinking -------- containing water.

  1. Cu

  2. Fe

  3. Zn

  4. Ra
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When the transgenic mice were a few weeks old, they were given drinking water containing zinc. Mice carrying the transgene grew to twice the size of their litter mates because the metallothionein enhancer sequence stimulated by zinc had increased growth hormone production.

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

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

Transgenic animals are used for testing chemical safety, testing vaccine safety, and producing pharmaceutical proteins. 'Stimulation of pathogenicity' is not a standard purpose - transgenic animals may model disease but not 'stimulate pathogenicity,' which is poorly phrased and unclear.