Which of the following statements are correct for replication?

(i) Watson and Crick proposed the semi-conservative scheme of DNA replication.

(ii) M.S. Meselson and F.W. Stahl proved semi-conservative scheme with E. coli growing in isotopic 14C.

(iii) Taylor and colleagues in 1958 proved semi-conservative replication of chromosomes by use of radioactive Thymidine in Vicia faba (faba beans).

(iv) In living cells, such as E.coli, the process of replication requires DNA-dependent DNA polymerase.

(v) Replication does not initiate randomly at any place in DNA.

(vi) The DNA-dependent DNA polymerases catalyze polymerization only in one direction, that is.

(vii) Any mistake during replication would result into mutations.