Why is the apparatus left for 15 minutes at each new light intensity before starting measurements

The apparatus is the instrument to perform various experiments in the lab. The apparatus is usually made up of glass.

These are the following apparatus used in the lab:-

Test

Apparatus left for 15 minutes at each new light intensity before starting measurements to sterilize and make it pure and get the error-free readings.

Different light intensities are sensitive to the various bacteria and help to kill them.

For more information, refer to the link:-

link

Ithink the dna sequences may vary but the amino acid sequences are identical. 

Processes above and be sure to mention the movement of electrons and energy as the carbon atom moves from one reaction to another.