Each of the four hfr strains has the f plasmid integrated into a different place in the genome. conjugation begins when a nick is introduced into one strand of the integrated f plasmid. which pairs of strains nick the chromosome on the same strand to begin conjugation?

Sociology of medicine refers to the study of how social factors affect

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?

What do the tiv do in the rainy season? a) fightb) teach their culturec) farmd) build new houses