Is it true plucking a white hair will grow two more in its place?

Pluck 1; Grow only 1. Easy enough to find out by plucking one and waiting a few days to find out that plucking one hair will result in the hair follicle to replace the hair with another single hair.
No. Plucking white or grey hair does not lead to more grey hair (although my mom use to tell me the same wive's tale.).