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Transgenic animals are useful in studyin...

Transgenic animals are useful in studying

A

vaccine safety

B

chemical safety

C

role of genes in disease

D

all the above

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understand Transgenic Animals**: Transgenic animals are organisms that have had a foreign gene (transgene) inserted into their genome. This modification allows them to express new traits or characteristics that are not naturally found in that species. 2. **Evaluate the Options**: The question presents four options regarding the usefulness of transgenic animals: - A) Vaccine safety - B) Chemical safety - C) Role of genes in disease - D) All of the above 3. **Analyze Option A - Vaccine Safety**: - Transgenic animals, such as transgenic mice, have been used in research to test the safety of vaccines. For example, transgenic mice were utilized to evaluate the safety of the polio vaccine. This demonstrates that transgenic animals can indeed be useful for studying vaccine safety. 4. **Analyze Option B - Chemical Safety**: - Transgenic animals are often more sensitive to chemicals compared to their non-transgenic counterparts. This heightened sensitivity allows researchers to study the effects of toxic substances and assess chemical safety effectively. Thus, transgenic animals are useful in this area as well. 5. **Analyze Option C - Role of Genes in Disease**: - Transgenic animals can be engineered to express human genes associated with specific diseases. For instance, the introduction of the human gene for alpha-1 antitrypsin in transgenic animals can help in studying and potentially treating diseases like emphysema. Therefore, they are also useful in understanding the role of genes in diseases. 6. **Conclusion - Option D**: - Since transgenic animals are useful in studying vaccine safety, chemical safety, and the role of genes in diseases, the correct answer is option D: All of the above. **Final Answer**: Transgenic animals are useful in studying vaccine safety, chemical safety, and the role of genes in disease. Therefore, the correct answer is D) All of the above. ---
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Transgenic animal are use for :-

Transgenic animals means

Which of the following statements about transgenic animals is/are false (i) Transgenic animals are designed to study how genes are regulated (ii) They are specially made to serve as models for human diseases (iii) Transgenic cow Rosie was created to produce human protein alpha -1 antitrypsin (iv) Transgenic mice are used to test the safety of vaccines

Assertion: Transgenic animals are now used in toxicity testing of various toxic chemicals Reason :Such animals carry gene which make them more sensitive to toxice substances

Transgenic animals have been used:

Choose the correct options :- (I) Transgenic animals that produce useful biological products such as human protein ______A_______used to treat emphysema (II) In 1997, the first transgenic cow, rosie produced human alpha -lactalbumin enriched milk (____B____g/l) (III) Transgenic mice are being used to test the safety of ____C_____. (IV) Transgenic animals are made that carry genes which make them _____D____to toxic substance than non-transgenic animals

Transgenic animals are designed for a) study of factors like IGF b) testing the safety of polio vaccine c) biological products like alpha - lactalbumin d) xenotransplantation (transgenic pigs) e) gene amplification

Which of the following transgenic animals are being used to test the safety of the polio vaccine?

Assertion: Transgenic animals are those animals whose DNA is mainpulated to process & express an extra /foregin gene Reason :About more than 95% of all existing transgenic animals, are mice

Consider the following statements. I) Transgenic animals are more sensitive to the toxic substance than non-transgenic animals. II) Useful biological products can be produced by introducing the portion of DNA which codes for a particular product into transgenic animals III) Brazzein is a protein produced by a west African plant, Pentadiplandra brazzeana which is approximately 2000 time as sweet as sugar. Which of the statements are given above are correct?