Last Updated：2025/12/05
A branching stochastic process arising from the statistical investigation of the extinction of family names, which are modelled as patrilineal, while offspring are randomly either male or female, and names become extinct if holders die without male descendants. It is useful in understanding human Y-chromosome DNA haplogroups.
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Galton-Watson process
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Source Word
Galton-Watson process
Noun
A
branching
stochastic
process
arising
from
the
statistical
investigation
of
the
extinction
of
family
names,
which
are
modelled
as
patrilineal,
while
offspring
are
randomly
either
male
or
female,
and
names
become
extinct
if
holders
die
without
male
descendants.
It
is
useful
in
understanding
human
Y-chromosome
DNA
haplogroups.
Japanese Meaning
家系絶滅の統計的調査から生じた分枝型の確率過程。家系は父系によりモデル化され、子孫はランダムに男女が選ばれ、男性の子孫が生まれなければ家名は絶滅する。これはヒトのY染色体DNAハプログループの理解に有用である。
Sense（1）
A
branching
stochastic
process
arising
from
the
statistical
investigation
of
the
extinction
of
family
names,
which
are
modelled
as
patrilineal,
while
offspring
are
randomly
either
male
or
female,
and
names
become
extinct
if
holders
die
without
male
descendants.
It
is
useful
in
understanding
human
Y-chromosome
DNA
haplogroups.
（ plural ）
