The phrase "a specimen from which" is correct and usable in written English.
It can be used in contexts where you are referring to a sample or example that is taken or derived from a larger group or source.
Example: "The researcher collected a specimen from which they could analyze the genetic material."
Alternatives: "a sample from which" or "an example from which".
In order to send a specimen from which pathogens are likely to grow, most published expert guidelines recommend obtaining a tissue specimen rather than a swab.
While the new qualifier "/lat_lon available as 2005", which indicates the GPS coordinates for the location at which a specimen, from which the sequence was obtained, was collected, it would be very useful and more accurate to determine the strain origin.
"I went to Kew Gardens (London) and as I was looking through the herbarium there I found a specimen from 1879 which had mines in it.
A similar pattern was recently reported for the essential oil from the flowers of a specimen from China, which had a high content of terpinolene [ 37].
For example, for the Sabine's Snipe, "The author was favoured by N. A. Vigors, Esq., [who had described the supposed species] with a preserved specimen, from which the above figure is taken".
We amplified nonvariola orthopoxvirus sequences in 65 specimens from 52 patients (Table 1); all specimens from which MPX virus had been isolated were also positive by PCR.
Each data point represents a core needle biopsy specimen from which tumor cellularity was estimated.
Interactive map showing collection locations for each specimen from which a full-length ITS sequence was obtained (Google Earth.kmz file; must have Google Earth installed on your computer to view).
The MDRTB diagnosis date was defined as the collection date of the first specimen from which an MDR M. tuberculosis isolate was cultured.
First, we restricted the definition of TB to include only patients with a positive culture on the same specimen from which smears were prepared.
And Shaw goes on to note that the ferocity of the wolf "is greatly mitigated by an early education; of which the individual specimen from which the present figure was taken, is a remarkable instance;" it had, he wrote, "been rendered in a great degree tame and gentle by the assiduity of the late Sir Ashton Lever".
