There are a few plausible ways:
As someone mentioned in the comments; Alcohol works well for this. We have samples from a hundred years ago (e.g. Thylacine), which have been stored at room temperature in a museum for that period of time and have had DNA easily extracted from them.
Unfortunately for many species, alcohol preservation fell out of favour due to ...
A genomic library is generated for the purpose of encapsulating the full genetic component of an organism.
You do this by fragmenting the genome with restriction enzyme that cuts at its recognition sequence. These fragments are then taken and cloned into a plasmid, so that they can then be sequenced inside the plasmid using common sequences that are found ...
From Off-Target In Vitro Profiling Demonstrates that Remdesivir Is a Highly Selective Antiviral Agent:
Overall, the cellular and biochemical assays demonstrated a low potential for RDV to elicit off-target toxicity, including mitochondria-specific toxicity, consistent with the reported clinical safety profile.
This isn't a very complete answer, but the ...
Generally based on (1). To quote the website:
The variants that are cause for most concern may:
spread more quickly,
evade natural or vaccine-related immunity,
cause more severe disease,
evade detection by available tests, or
are less responsive to treatment.
If you look at the features they say they look for in variants, the one they mention first is &...
The two cases are slightly different.
'Ancestry proportions', such as those given by 23andme, are given in the context of a reference panel. This means that they aggregate genetic data from individuals into particular countries, say Spain, Italy and France. They would then look at the genome of the individual they are testing, and find how much of the genome ...