Which of the following correctly defines a transgenic animal [CBSE PMT 1995]
A) An animal which has foreign DNA and RNA in some of its cells because of an injection of DNA and RNA into the nucleus of the zygote from which it is developed
B) An animal which has foreign DNA in all its cells because of an injection of DNA into the nucleus of the zygote from which it is developed
C) An animal which has foreign DNA in some of its cells because of an injection of DNA into the nuclei of some of the cells of the blastocyst
D) An animal which has foreign DNA in all its cells because of an injection of DNA into the nuclei of some of the cells in adulthood
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Hey mate..
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The correct option is :--B) An animal which has foreign DNA in all its cells because of an injection of DNA into the nucleus of the zygote from which it is developed
Reason:--
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☆What are transgenic animals ?☆
▪Transgenic animals are those that, as a consequence of experimental DNA transfer application, have exogenous DNA integrated in their germ line.
▪The integrated DNA may or may not derive from the same species as the host genome; it may or may not encode for a functional gene; and it may or may not be targeted to an intended site of incorporation in the genome.
Hope it helps ::
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The correct option is :--B) An animal which has foreign DNA in all its cells because of an injection of DNA into the nucleus of the zygote from which it is developed
Reason:--
~~~~~~~
☆What are transgenic animals ?☆
▪Transgenic animals are those that, as a consequence of experimental DNA transfer application, have exogenous DNA integrated in their germ line.
▪The integrated DNA may or may not derive from the same species as the host genome; it may or may not encode for a functional gene; and it may or may not be targeted to an intended site of incorporation in the genome.
Hope it helps ::
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