Consider the following statements. Which of the statements are given below is correct? |
(I) Transgenic animals are made more sensitive to toxic substance than non-transgenic animals to test toxicity or safety of substances. |
(II) Useful biological products can be produced by introducing portion of DNA into transgenic animals which codes for a particular product. |
(III) Brazzein is protein produced by a west |
African plant, \[Pentadiplandra\,\,\,brazzeana\] which is approximately2000 times as sweet as sugar. |
A) (I), (II) and (III)
B) (I) and (II)
C) (I) and (III)
D) None of these
Correct Answer: A
Solution :
(I) Transgenic animals are made to carry genes which make them more sensitive to toxic substances than non-transgenic animals. |
(II) Useful biological products can be produced by introducing the portion of DNA (or genes) which codes for a particular product into transgenic animals e.g., human protein (a-1 antitrypsin) is used to treat emphysema. |
(III) Brazzein is protein produced by a West African plant, \[Pentadiplandra\text{ }brazzeana,\]which is approximately 2000 times as sweet as sugar. It is used as a low calorie sweetener. Local people have been using the super sweet berries of this plant for centuries. But the protein brazzein was patented in USA. |
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