A bacterial strain has two copies of the lac operon, one on a plasmid and the other or its name. It is lacthacP'loco'lcZ'lacylacA'
lacl" locp' loco' lacz- loc lacA
When lactose is absent, will permease be made?
yes
no

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size