DNA Molecule

Cheek/Chick DNA Project

Y-DNA Tables

A Y-DNA test is essentially a chemical yardstick which measures the length of certain segments of the Y-chromosome which have been identified as "markers."  25 separate markers are analyzed in a standard 25-marker test.  Each marker receives a numerical value which is an indication of its length.  To be technically precise, the test counts the number of "short tandem repeats" or bits of repeated genetic code within the marker.  For example, a marker which contains the code:

GATAGATAGATAGATA

has 4 repeats of "GATA," so its result would be "4."  Mutations, when they occur, usually result in the addition or subtraction of one of the repeated segments, which increases or decreases that marker's value by one point:

GATAGATAGATA = 3
GATAGATAGATAGATA = 4
GATAGATAGATAGATAGATA = 5
etc.

Markers can vary in number as well as length.  Some people may be missing certain markers, while other people have extras.  Duplications are relatively common in the group of markers known as the 464 series.  Most men have four copies of this marker, which scientists call 464a, 464b, 464c, and 464d.  However, some men have five or more copies.  In our group, three participants have duplications in the 464 series: Participant #24 has five copies, Participant #18 has six, and Participant #34 has seven.

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Cheek/Chick DNA Project GROUP 1 (Hg R1b1)
    Marker (DYS) Number
(markers in red are known to mutate faster than average)
No. Ancestor 3
9
3		 3
9
0		 1
9		 3
9
1		 3
8
5
a		 3
8
5
b		 4
2
6		 3
8
8		 4
3
9		 3
8
9
·
1		 3
9
2		 3
8
9
·
2		 4
5
8		 4
5
9
a		 4
5
9
b		 4
5
5		 4
5
4		 4
4
7		 4
3
7		 4
4
8		 4
4
9		 4
6
4
a		 4
6
4
b		 4
6
4
c		 4
6
4
d
  Most Common Group 1 Profile 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
2 William Cheek, Madison Co., GA 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
7 James Chick, Knox Co., KY 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
12 William Cheek, Madison Co., GA 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
13 Jeremiah Cheek, Bedford Co., TN 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
15 John R. Cheek, AL & TX 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
19 Ellis Cheek, Laurens, SC 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
20 John Cheek, Carroll Co., MS 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
27 Jesse Cheek, Maury Co., TN 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
28 Ellis Cheek, Laurens, SC 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
40 Ellis Cheek, Laurens, SC 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
X Robert Couch, Murray Co., GA 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
X Joshua Jordan, Jennings Co., IN 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
38 Willis Cheek, Laurens, SC 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 19
8 William Cheek, Madison Co., GA 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 28 15 16 17 20
25 Washington R. Cheek, Red River Co., TX 13 22 14 11 11 14 12 12 12 13 13 29 19 9 10 11 11 24 15 19 29 15 16 17 20
29 Jeremiah Cheek, Bedford Co., TN 13 22 14 10 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 19
32 William Chick, Hanover Co., VA 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 30 15 16 17 19
1 Richard Cheek, Alleghany Co., NC 13 22 14 11 11 14 12 12 12 14 13 30 18 9 10 11 11 24 15 19 29 15 16 17 20
5 John Cheek, Carroll Co., MS 13 22 14 11 11 14 12 12 12 14 13 30 18 9 10 11 11 24 15 19 29 15 16 17 20
6 Robert Cheek, Orange Co., NC 13 22 14 11 11 14 12 12 12 14 13 30 18 9 10 11 11 24 15 19 29 15 16 17 20
33 Robert Cheek, Orange Co., NC 13 22 14 11 11 14 12 12 12 14 13 30 18 9 10 11 11 24 15 19 29 15 16 17 20
17 Robert Cheek, Orange Co., NC 13 22 14 11 11 14 12 12 12 14 13 30 18 9 10 11 11 24 15 19 29 16 16 17 20
4 William B. Cheek, Buncombe Co., NC 13 22 14 11 11 14 12 12 12 14 13 30 18 9 10 11 11 24 15 19 30 15 16 17 20
24 John Cheek, Carroll Co., MS 13 22 14 11 11 14 12 12 12 14 13 30 18 8 10 11 11 24 15 19 29 15 16 17 20/
20
39 Richard Cheek, Alleghany Co., NC 13 22 14 11 11 14 12 12 12 14 13 30 18 8 10 11 11 24 15 19 29 15 15 17 20
22 Robert Cheek, Orange Co., NC 13 22 14 11 11 14 12 12 12 14 13 30                          
23 Robert Cheek, Orange Co., NC 13 22 14 11 10 14 12 12 13 14 13 30                          
18 William Chicke, Somerset, England 13 22 14 12 11 13 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16/
16		 17 19/
20
34 William Chicke, Somerset, England 13 22 14 13 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16/
16		 17/
19		 19/
20
  Atlantic Modal Haplotype 13 24 14 11   12 This DNA pattern is common on the Atlantic coast of Europe (Ireland, Wales, southern England, Basque Country, etc.)

 

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Cheek/Chick DNA Project GROUP 2 (Hg R1b1)
    Marker (DYS) Number
(markers in red are known to mutate faster than average)
No. Ancestor 3
9
3		 3
9
0		 1
9		 3
9
1		 3
8
5
a		 3
8
5
b		 4
2
6		 3
8
8		 4
3
9		 3
8
9
·
1		 3
9
2		 3
8
9
·
2		 4
5
8		 4
5
9
a		 4
5
9
b		 4
5
5		 4
5
4		 4
4
7		 4
3
7		 4
4
8		 4
4
9		 4
6
4
a		 4
6
4
b		 4
6
4
c		 4
6
4
d
21 John Cheek, Surry Co., NC 13 25 14 10 11 11 12 12 13 13 13 29 17 9 10 11 11 24 15 19 29 15 15 16 17
31 Nicholas Cheek, Shelby Co., KY 13 25 14 10 11 11 12 12 13 13 13 29 17 9 10 11 11 24 15 19 29 15 15 16 17
37 Nicholas Cheek, Shelby Co., KY 13 25 14 10 11 11 12 12 13 13 13 29 17 9 10 11 11 24 15 19 29 15 15 16 17
30 Henry Cheek, Adair Co., KY 13 25 14 10 11 11 12 12 12 13 13 29 17 9 10 11 11 24 15 19 29 15 15 16 17
14 John Cheek, Surry Co., NC 13 25 14 10 11 11 12 12 13 13 13 29                          
  Atlantic Modal Haplotype 13 24 14 11   12 This DNA pattern is common on the Atlantic coast of Europe (Ireland, Wales, southern England, Basque Country, etc.)

 

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Cheek/Chick DNA Project Unique Results
      Marker (DYS) Number
(markers in red are known to mutate faster than average)
No. Ancestor H
a
p
l
o		 3
9
3		 3
9
0		 1
9		 3
9
1		 3
8
5
a		 3
8
5
b		 4
2
6		 3
8
8		 4
3
9		 3
8
9
·
1		 3
9
2		 3
8
9
·
2		 4
5
8		 4
5
9
a		 4
5
9
b		 4
5
5		 4
5
4		 4
4
7		 4
3
7		 4
4
8		 4
4
9		 4
6
4
a		 4
6
4
b		 4
6
4
c		 4
6
4
d
  Most Common Group 1 Profile R1b1 13 22 14 11 11 14 12 12 12 13 13 29 18 9 10 11 11 24 15 19 29 15 16 17 20
  Most Common Group 2 Profile R1b1 13 25 14 10 11 11 12 12 13 13 13 29 17 9 10 11 11 24 15 19 29 15 15 16 17
41 John Wilbur Cheeks, Wilkes Co., NC R1b1 13 24 14 11 11 13 12 12 12 13 13 29 18 9 9 11 11 25 15 19 28 15 16 16 17
16 John R. Cheek, AL & TX 13 23 14 11 10 14 12 12 13 13 13 29 19 9 10 11 11 25 15 19 30 15 15 17 17
26 Jesse Cheek, Maury Co., TN 13 24 14 12 11 14 12 12 12 13 13 29 16 9 10 11 11 25 15 19 30 15 15 15 17
11 Henderson Cheek, Wilkes Co., NC 13 24 14 10 11 14 13 12 12 13 13 29 16 9 10 11 11 25 15 19 30 14 15 16 16
35 William Cheek, Surry Co., NC 13 25 14 11 11 15 12 12 12 14 13 30 16 9 10 11 11 25 15 19 30 14 15 15 16
9 William Cheek, Jasper Co., GA 13 23 14 11 11 11 12 13 11 13 13 29 18 9 10 11 11 25 15 19 27 15 15 16 17
3 Elisha Cheek, Franklin Co., GA 13 25 14 10 11 15 12 12 12 13 11 29 18 9 9 11 11 25 16 20 29 15 15 17 17
10 Thomas R. Cheek, Franklin Co., GA I1a 13 23 14 10 14 14 11 14 12 12 11 28 15 8 9 8 11 23 16 20 28 12 15 15 15
36 James Cheek, Decatur Co., IN E3b 13 23 13 11 16 17 11 12 13 13 11 30 16 9 9 11 11 25 14 20 35 13 13 15 17


The 37-marker test. Although most of our participants have purchased the 25-marker test (which is perfectly adequate for most purposes), several people have invested in the more expensive 37-marker test.  Testing all 37 markers allows for more accurate comparisons between individuals, and is especially useful for determining relationship in borderline cases.

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37-Marker Test Results
      Marker (DYS) Number
(markers in red are known to mutate faster than average)		   Probability of Common Ancestor
No. Ancestor Grp 4
6
0		 G
A
T
A
H
4		 Y
C
A
II
a		 Y
C
A
II
b		 4
5
6		 6
0
7		 5
7
6		 5
7
0		 C
D
Y
a		 C
D
Y
b		 4
4
2		 4
3
8		 Genetic Distance
from typical
Grp 1 (37
markers)		 200
yrs		 300
yrs		 500
yrs
  Most Common Group 1 Profile 1 11 11 19 23 17 15 18 16 37 37 12 12 -- -- -- --
15 John R. Cheek, AL & TX 1 11 11 19 23 17 15 18 16 37 37 12 12 0 97% 99.6% 99.9%
X Joshua Jordan, Jennings Co., IN 11 11 19 23 17 15 18 16 37 37 12 12 0 97% 99.6% 99.9%
X Robert Couch, Murray Co., GA 10 11 19 23 17 15 18 16 37 37 12 12 1 89% 97% 99.9%
25 Washington R. Cheek, Red River Co., TX 11 11 19 23 17 15 18 16 37 37 12 12 1 89% 97% 99.9%
38 Willis Cheek, Laurens, SC 11 11 19 23 17 15 18 16 37 37 12 12 1 89% 97% 99.9%
20 John Cheek, Carroll Co., MS 11 11 19 23 17 15 19 16 37 37 12 12 1 88% 97% 99.8%
7 James Chick, Knox Co., KY 11 11 19 23 17 15 18 16 36 37 12 12 1 87% 97% 99.8%
1 Richard Cheek, Alleghany Co., NC 11 11 19 22 17 15 18 16 37 37 12 12 2 73% 92% 99.4%
29 Jeremiah Cheek, Bedford Co., TN 11 11 19 23 17 15 18 16 37 37 12 12 2 72% 91% 99.4%
32 William Chick, Hanover Co., VA 11 11 19 23 17 15 18 16 37 37 12 12 2 70% 90% 99.2%
24 John Cheek, Carroll Co., MS 11 11 19 23 17 15 18 16 37 37 12 12 3 51% 80% 97.8%
18 William Chicke, Somerset, England 1? 11 11 19 23 17 15 17 17 37 38 12 12 7 1% 9% 46%
30 Henry Cheek, Adair Co., KY 2 11 11 19 22 16 14 17 17 36 37 12 12 16 0.0% 0.1% 4.9%
37 Nicholas Cheek, Shelby Co., KY 11 11 19 22 16 14 17 17 36 37 12 12 16 0.0% 0.1% 4.9%
16 John R. Cheek, AL & TX Uni-
que		 11 11 19 22 17 14 17 17 37 37 11 12 16 0.0% 0.0% 0.1%
35 William Cheek, Surry Co., NC 11 11 19 21 15 15 18 17 36 38 11 12 18 0.0% 0.0% 0.1%

 

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