ED - only one I can think of
NC - not blood cell count?
ED - no
J- says it's the only one she knows
NC - whether M or F is written in every cell of the body
ED - don't understand.
NC - if in doubt, rarely, but if in doubt you can do a simple cheek swab
ED - DNA swab?
NC - yes,
NC - it will tell you sex
ED - yes
NC - a cheek swab will tell you if body is m or F
ED - will give you DNA, individual to everyone
NC - will tell if M or F
ED - yes it's your unique identity
NC - those tests won't be changed by hair, make up, clothes
ED - I don't know, a nurse