What is smaller than a quark, theoretically?​

A photon would be smaller than a quark, but remeber

things are very    

diferent down there so this wouldent eally rwork

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).