Vectors Uses for Animal Cell Culture
Retroviruses have advantage for being used as vector for animal cells because

they cover a wide host range
All of these
viral gene expression is driven by strong promoters
infection does not lead to cell death, infected cells produce virus over an indefinite period

ANSWER DOWNLOAD EXAMIANS APP

Vectors Uses for Animal Cell Culture
Yeast episomal plasmids (YEp) were constructed using

2μm yeast plasmid, fragments of yeast nuclear DNA and E coli vector pBR 322
2μm yeast plasmid, fragments of yeast nuclear DNA and E coli vector pMB 9
12μm yeast plasmid and E coli vector pBR 322
12μm yeast plasmid and E coli vector pMB 9

ANSWER DOWNLOAD EXAMIANS APP