Human replica evolved like characters in Fahrenheit 451? (12)

I believe the answer is:
alphanumeric
'characters in fahrenheit 451?' is the definition.
I can't judge whether this defines the answer.
'human replica evolved' is the wordplay.
'evolved' is an anagram indicator (the order of letters changes or evolves).
'human'+'replica'='humanreplica'
'humanreplica' with letters rearranged gives 'ALPHANUMERIC'.
'like' is the link.
Can you help me to learn more?
(Other definitions for alphanumeric that I've seen before include "Referring to both characters and figures" , "Consisting of both numbers and letters" , "Using words and numbers" , "Using both letters and numbers" , "Using two types of character" .)
