- if the repressor protein did bind to the promoter region, how would it block RNA polymerase (if RNA polymerase was going to bind to operator region)?
RNA polymerase actually binds to the promotor region not the operator region, so having a Repressor attached to the operator stops the polymerase from travelling down the gene and transcribing it. Other than that, everything you’ve said is correct
1) It’s not another tcl, the plasmid gets cut at Bamh1, which is in the middle of tcl. The human gene is inserted there, leaving half of tcl on either side.
2) There hasn’t really been that many past exam questions on ethics. I’d recommend just remembering a few ethical issues and then picking whichever is relevant for the scenario you’re given.
3) It’s not saying the chlorophyll is saturated, it’s saying the chlorophyll is damaged. If it was damaged the net output would have gone down, this is not the case - as you can see in the diagram it has remained constant, therefore it can’t be C.
4) Decreased apoptosis in
surrounding normal cells wouldn’t cause rapid division of cancer cells - the only option that would cause that is D.
5) If you specified antibacterial then yes.