Which of the following is not true about prescription medication use for weight loss and maintenance?

some of these medications in the 1960's were related to amphetamines.

fen-phen has no dangerous side affects.

orlistart affects absorption and digestion of fat in the body.

they have only a temporary effect and weight can increase after discontinuing them.

In many ways, the regulation of the genes of a particular group of viruses will be similar to the regulation of the host genes. therefore, which of the following would you expect of the genes of a bacteriophage? a) regulation via acetylation of histonesb) positive control mechanisms rather than negativec) control of more than one gene in an operond) reliance on transcription activators