DNA Inheritance Table
|
DNA
Test
|
Who
inherits?
Who can test?
|
Inherits from?
|
Deep Ancestry or Recent Ancestry?
|
Notes
|
|
Y-DNA
|
Male
|
Male
|
Deep
|
Single male line;
relatively unchanged except mutations
|
|
MtDNA
(Mitochondrial)
|
Male and Female
|
Female
|
Deep
|
Mother passes to both male and female children; only female passes on |
|
AtDNA
(Autosomal)
|
Male and
Female
|
Male and
Female
|
5-8 generations
|
Recombination in every
generation
|
|
X-DNA
|
Male and
Female
|
Male and Female
|
Recent
|
Blaine Bettinger X
inheritance chart shows exactly who you inherit from; separate chart for male
and female
|
Autosomal
Amounts of DNA inherited: approximately 50% from each
parent, 25% from each grandparent, 12.5% from each great-grandparent, 6.25%
from each 2x great-grandparent, and so on.
Recombination: Genetic recombination randomly “chops” up DNA in each successive
generation as a child is being conceived. For example: In creating the
child’s chromosome 1, segments are taken from the father’s chromosome 1 and
alternated with segments from the mother’s chromosome 1. Usually up to a
total of 3 segments.
Blaine Bettinger X Chromosome Inheritance Chart on his
blogsite: https://thegeneticgenealogist.com/2008/12/21/unlocking-the-genealogical-secrets-of-the-x-chromosome/
Judith Culver 7/24/17
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