Question

Read the following statements and select the correct ones.
(I) Same kind of sticky ends are produced when a DNA has been cut by different restriction enzymes.
(ii) Exonucleases make cuts at specific positions within the DNA (iii) Hind II was the first restriction endonuclease to be isolated.
(iv) A bacteriophage has the ability to replicate within bacterial cells by integrating its DNA with bacterial DNA.
(v) Presence of more than one recognition sites for a enzyme within the vector complicates the gene cloning
(a) (i), (iii) and (v)
(b) (i) and (iv)
(c) (iii) and (iv)
(d) (ii), (iii) and (iv)

ans is c. which means statement 5 is incorrect. could anyone explain me why 5th statement is wrong ? ​

Answer 1

Answer:

to cope with more than one recognition sites we use selectable markers so if multiple recognition sites are present it will complicate the gene cloning