With reference to ‘stem cells’, frequently in the news, which of the following statements is/are correct? 1. Stem cells can be derived from mammals only. 2. Stem cells can be used for screening new drugs. 3. Stem cells can be used for medical therapies.

2012

“Genetics,Biotechnology”, Science and Technology

With reference to ‘stem cells’, frequently in the news, which of the following statements is/are correct? 1. Stem cells can be derived from mammals only. 2. Stem cells can be used for screening new drugs. 3. Stem cells can be used for medical therapies.

(a)

1 and 2 only

(b)

2 and 3 only

(c)

3 only

(d)

1, 2 and 3

Answer:

(b)

Core Books/NCERT

Explanation

Statement 1 is incorrect: Stem cells can be derived from both mammals and embryos. Statement 2 is correct: Stem cells are used to test new drugs. Statement 3 is correct: Stem cells have applications in medical therapies.