20. Recombinant DNA technology (Genetic Engineering) allows genes to be transferred
1. across different species of plants
2. from animals to plants
3. from microorganisms to higher organisms
 

Select the correct answer using the codes given below.

1. 1 only

2. 2 and 3 only

3. 1 and 3 only

4. 1, 2 and 3

Correct Answer :