Lac operon gets activated in the presence of lactose, but Trp operon gets deactivated in the presence of tryptophan.
SEM and TEM are electron microscopes whereas the SEM uses reflected electrons and TEM uses transmitted electrons to form an image
Explanation:
- SEM is the scanning electron microscopes and TEM is the Transmission electron microscope
- SEM works by detecting the scattered electrons to create an image of the sample whereas the TEM detects the transmitted electrons to create the image of the sample
- SEM will only be analysing the surface of the sample whereas TEM collects data vertically also
- TEM sample needs to cut thinner than SEM and TEM will give high-resolution images than SEM
A mass of lymphatic tissues at the back of the mouth is called A TONSILS.
Tonsils are the two lymph nodes located on each side at the back of the throat. They act as a defense mechanism, they prevent infection. When the tonsils become infected the condition is called tonsillitis.
Explanation:
answer is animals hope you I think answer is animals only
