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Biotechnology and Its Applications
(a) Why are transgenic animals so called?
(b) Explain the role of transgenic animals in
(i) Vaccine safety
(ii) Biological products with the help of an example each.
(a) Transgenic animals are so called because they have their DNA manipulated and thus they possess and express foreign gene.
(b) Role of transgenic animals in :
(i) Vaccine safety
Transgenic mice are being developed and used to test the safety of the vaccine before they are used on humans.
(ii) Biological products
Transgenic animals are developed and their genes are manipulated so that they produce certain biological products which are expensive to make. e.g. The first transgenic cow Rosie produced milk which had human alpha-lactalbumin.
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