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

cosmid

Explanation:

relates to purification

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !