Tag: biotechnology and its applications

Questions Related to biotechnology and its applications

Ethics are associated with genetic engineering because of ___________.

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

  1. Human dignity

  2. Commercialization of genetic research

  3. Fair use of genetic information

  4. All of the above

Show answer
Correct Option: D
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. 

Which of the following GM microbe contains gene for naphthalene?

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

  1. Mycobacterium tuberculosis

  2. E.coli

  3. Pseudomonas putida

  4. Pseudomonas aeruginosa

Show answer
Correct Option: C

The enzymatic degradation of lactose in dairy product can reduce the__________.

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

  1. Casein

  2. Whey

  3. Microbes

  4. Acrylamide

Show answer
Correct Option: D
Explanation:

Acrylamide does not form, or forms at lower levels, in dairy, meat, and fish products. so the enzymatic degradation of lactose in dairy produts can reduce the acrylamide.

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

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

  1. $2.4$ grams/lit

  2. $4.2$ grams/lit

  3. $3.4$ grams/lit

  4. $4.3$ grams/lit

Show answer
Correct Option: A
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.'

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

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

  1. Cell culture

  2. Computer models

  3. Epidemiological studies

  4. Improving experimental technique

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Correct Option: D

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

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

  1. Cu

  2. Fe

  3. Zn

  4. Ra

Show answer
Correct Option: C
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.

More than $95\%$ of transgenic animals are.

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

  1. Rabbits

  2. Mice

  3. Fish

  4. Cows

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Correct Option: B

The Transgenic animals are generally produced for all of the following needs EXCEPT.

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

  1. Testing of chemical safety

  2. Testing of vaccine safety

  3. Stimulation of pathogenicity

  4. Production of pharmacologically important proteins

Show answer
Correct Option: C

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

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

  1. Hepatitis B virus vaccine

  2. Herpes virus vaccine

  3. Salk's polio vaccine

  4. Both (A) and (B)

Show answer
Correct Option: D
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)'.

Golden rice is _____________________.

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

  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

Show answer
Correct Option: C
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.