ancestor
ancestors
ancestress
antecedent
antecedents
archetype
ascendant
ascendants
begetter
elders
fathers
forebear
forebears
forefather
forefathers
foregoer
forerunner
grandfathers
grandparent
grandparents
guide
origin
original
originator
parent
patriarchs
pattern
precursor
predecessor
predecessors
primogenitor
procreator
progenitors
progenitress
progenitrix
prototype
source
ascendent
root
genitor
progeny
ancestry
apoptosis
benefactor
descendant
differentiation
founder
heritage
leukemia
lineage
malignancies
myeloid
parentage
phenotype
proliferation
subset
transplantation