1.

With reference to 'stem cells' which are often in the news, which of the following statement(s) is/are correct? 1. Stem cells can be obtained only from mammals. 2. Stem cells can be used to test new drugs. 3. Stem cells can be used for medical therapy.

A. 1 and 2
B. 2 and 3
C. only 3
D. 1,2 and 3
Answer» C. only 3


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