2 Wrong - There is only one restriction site of EcoRI in pQE60-GOI which originates from pQE60. Elements from the Lac promotor are present in pQE60 (click here to see them), and thus will be contained in pQE60-GOI.
3 Wrong - Ampicillin is contained within pQE60-GOI (originating from pQE-60). There is a Stop codon in pQE60-GOI (the last codon in GOI [tag] is a stop codon).
4 Right - The NcoI site within pQE-60 contains an ATG codon in frame after the RBS (ribosome binding site) and before the ATG of GOI. Thus a stretch of 12 nucleotides within the reading frame is created: ATGgga gga tcc
.