12th Class Biology Sample Paper Biology - Sample Paper-4

  • question_answer
    (i) What is vector?
    (ii)  Name the two types of cloning vectors.
    (iii) Which cloning vector was discovered first time?
     

    Answer:

    (i) Vector is DNA molecule that can carry a foreign DNA segment and replicates inside the host cell.
    (ii) (a) Plasmid vectors and (b) Bacteriophage vectors.    
    (iii) E. coli cloning vector \[pB{{R}^{322}}~~\] 


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