Tag: biotechnology and its applications

Quizzes (13) Questions (226)

Questions Related to biotechnology and its applications

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.

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

Second generation vaccines are prepared by recombinant DNA technology. Which out of the following are the examples of such vaccines?

  1. Hepatitis B virus vaccine

  2. Herpes virus vaccine

  3. Salk's polio vaccine

  4. Both (A) and (B)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Second generation vaccines are the vaccines which are prepared by recombinant DNA technique/ genetic engineering, e.g., hepatitis B virus vaccine, herpes virus vaccine and pneumonia vaccine. The yeast-derived recombinant hepatitis B virus vaccine is the first commercially available human vaccine produced by the genetic engineering technology. Hepatitis B vaccine is produced from transgenic yeast by recombinant DNA technology.
So, the correct answer is 'Both (A) and (B)'.
Multiple choice botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

Golden rice is _____________________.

  1. A variety of rice grown along the yellow river in China

  2. Long stored rice having yellow cocur tint
  3. A transgenic rice having gene for $\beta$-carotene

  4. Wild variety of rice with yellow colored grains
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Golden rice is a transgenic variety of rice (Oryza Sativa) which contains good quantities of $\beta$-carotene ( provitamin A- inactive state of vitamin A). $\beta$-carotene is a principle source of vitamin A. Since the grains (seeds) of the rice are yellow in colour due to $\beta$-carotene, the rice is commonly called golden rice.