How do you generate GA chromosomes when optimizing parameters in Optimize parameters (Evolutionary)?

sdy1401

How do you generate GA chromosomes when optimizing parameters in Optimize parameters (Evolutionary)?
I am curious about how GA generates chromosomes in the case of continuous data when parameters are specified as ranges.
In case of discontinuity, it is known to be expressed in bit format of 0,1.
Can you tell me how it is expressed in the case of a continuous type?
Thank you.