Which of the following is the least realistic goal for attaining and maintaining mental and emotional health?
a. be sure i have a chance to do something fun every day
b. make friends with people i have something in common with
c. get regular exercise and eat nutritious food
d. set a goal for myself and stick to it no matter what

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