Many mutations have been identified in the lac operon. A particular mutation in the CRP gene make the CRP protein bind to the lac promoter independent of the level of cAMP. Select all conditions which will lead to the operon being "on" with this mutation (For the purposes of these questions, either an extremely low level of expression or completely off are equivalent) MARK ALL THAT APPLY

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.

answerpotassium hydroxide preparation;

treatment of fungal infections usually follows diagnosis confirmed by potassium hydroxide preparation or culture;

reflection is the bouncing back of a propagating wave when it encounters a barrier; usually shows an image of the source of light wave

1) bounces back from an opaque material

2) bounces back from the boundary

3) seen in mirrors

refraction is the bending of a propagating wave having a shift of direction as it passes through different media; usually seen in lenses to magnify or lessen

1) passes through a prism

2) moves from one medium to another

3) seen in lenses