That's cute.
wvmarle:
I've heard before that within a single tree you can find really different sets of DNA - as if it are multiple individuals.
The same is true for humans. A single person can have two different sets of DNA. So if you get DNA from a blood sample at a crime scene and compare it with DNA taken from a saliva sample from a suspect they could be different even though both blood and saliva came from the same person.
Ah, yes, heard about that. It's really rare but it happens.
wvmarle:
Ah, yes, heard about that. It's really rare but it happens.
If you follow things to their logical conclusion there may be healthy individuals out there who naturally have;
- three parents, one female, two male
- two sets of DNA, one male, one female
- the two sets of DNA being no more closely related than in a normal half brother/sister.
Strange world.
Stick on what is written/explained in the official student's books, not in what you've heard somewhere, I would say : D
That "multiple sets of DNA" is extremely rare, I forgot how it's supposed to come to be, but it has wreaked havoc with criminal investigations relying on those DNA profiles.
BorislavLukanov:
Stick on what is written/explained in the official student's books, not in what you've heard somewhere, I would say : D
It is in the textbooks and not are rare as you might think. Here is a report of a healthy apparently normal female who also had male DNA;
https://www.researchgate.net/publication/24255524_A_healthy_female_chimera_with_46XX46XY_Karyotype
The idea that somebody might have three parents is speculation on my part. However I am certain there must be cases of non-identical twins having two fathers so it follows there will be instances where an individual has two fathers.
Pretty sure every single crime drama show has invoked chimeric people as a plot twist or reveal.
But really, all this pedantry suggesting DNA analysis is worthless because sometimes there are anomalies, is silly. It's like scrapping radar technology because sometimes bird poop is a problem.
INTP:
Pretty sure every single crime drama show has invoked chimeric people as a plot twist or reveal.But really, all this pedantry suggesting DNA analysis is worthless because sometimes there are anomalies, is silly. It's like scrapping radar technology because sometimes bird poop is a problem.
I just mentioned a crime scene as a bit of joke. DNA analysis is of course useful, but it is not as all powerful and unambiguous as is sometimes suggested. Sex testing in sports, even using DNA samples, has more or less been given up on because the results are not as straight forward as might be supposed.
?? so, is this XX XY multiple DNA human on this forum and does he/she have any questions ?
I am pretty sure we are not able to buy a remote, non-contact, DNA scanning sensor on this planet at this state of our technology.
I wonder if that person would be able to program in C++ with the logic of a male and the artistic abilities of a female ?
it would be interesting to see the arduino code written by someone with that genetic code.
I like your logic, dave-in-nj : D ... females are STUPID! HAHAHAHAHAHA
I kind of don't believe this but from a quick scan of the web it actually seems to to be true;
low cost hand held devices that scan DNA actaully exists.
This device seems to be rather specific but more generalised ones also seem to at least be in the pipline
They seem to be aiming to “allow anybody to sequence anything, anywhere.”
So far I have not found this being shot down in flames - is this real???
Well, doing it the old fashioned way takes a lot of time to isolate DNA material from the rest of the junk and then run polymerase chain reaction to make enough of the DNA to be able to analyze. I suppose with the right coffee grinder and the right detergent, isolating DNA could be handheld. Then it would just need to be a super good analyzer that can work with a tiny sample to skip the PCR step.
For those hand-held devices I'd expect the sample size to be abundant. No need to work with traces as the very DNA source is actually holding the device.
DNA is sparse by volume. Like, unimaginably sparse. And it's not readily accessible. And it sounds unpleasant, feasible as it may be, to work on an automated pin prick such as those used for insulin meters.
We must find Iridium ore : D to build a scanner! : D HAHAHA maybe there will be need of copper ore too : D