Chromosome 13 was easy to solve. Let’s see how easy Chromosome 14 is.
Chromosome 14
I start with trying to find crossovers and assigning them to siblings:
Then I put these crossovers into a spreadsheet and try to get position numbers from the match numbers to the left of the above.
This gives me another chance to check out the crossovers. I’m not sure on the position numbers of H and V near the end. I may find that from cousin matches. This should be another easy chromosome to solve.
Rathfelder cousin Anita shows Jim’s crossover, but the position number is still not given:
I’ll just log in to Gedmatch and get the position number there:
That means that the 94.9M crossover that I had for Heidi belongs to Jim.
These two Hartley cousins fill in a lot of orange DNA:
However, I see a problem. Between Heidi’s Frazer DNA and the Hartley on the right, she only has one crossover and that has been used up on the maternal side. However, Heidi has a crossover on the right with no maternal or paternal change, so that is wrong. Heidi must have a paternal crossover on the right:
That also makes sense because the H &L comparison shows a green FIR, so Heidi must have Frazer on the paternal side. I am now close to solving this Chromosome.
I’ll check matches with Lentz cousin Judith:
I just need to fill in the left and check for accuracy.
The HIR Problem
Lori has an HIR with each of her five siblings in the first segment:
That means that we may not be able to solve Lori’s last remaining segment:
Fortunately, my Hartley cousin Patricia uploaded her DNA to Gedmatch:
Patricia does not match Lori in that first segment, so the inference is that Lori has Frazer DNA there as do Jim, Jon and Joel:
That puts Lori’s crossover on her maternal side.
Here is the final comparison:
Summary and Conclusions
- These higher number chromosomes are shorter. However, on the Excel spreadsheet, they take up the same amount of room. That means that they are spread out more and easier to see. In addition, the larger chromosomes have fewer crossovers, making them easier to solve.
- There is also the chance that, on these shorter chromosomes, there will be fewer matches. That has not been a problem up to this point. I’m sure it helps that I have six siblings.
- In Chromosome 14, Jim gets a full dose of paternal Frazer DNA.
- There is DNA coverage on the paternal grandparent side. Some Lentz DNA is missing on the maternal side. We could get that from my mom, but would have to figure out which of her DNA is maternal and paternal.