The phrase "a fen" is correct and usable in written English.
It can be used to refer to a type of wetland or marshy area, often characterized by waterlogged soil and specific types of vegetation.
Example: "The wildlife in a fen is diverse, supporting various species of birds and plants that thrive in moist conditions."
Alternatives: "a marsh" or "a bog".
Therefore, ExoIX (when assayed in isolation) did not possess either 5 3′ exonuclease or 5′ FEN activity that would be expected of a FEN enzyme.
Because the moat receives upland drainage it may be a fen.
A "fen" he defines as "a common woman" but in Ireland, a "fen" is a boggy marsh — which gives us a good idea of how an insult seeds itself and germinates on new soil.
This may become a fen, with grasses and sedges principally involved, if the lake water has sufficient mineral content.
In strict usage, a fen denotes an area in which the soil is organic (peaty) and alkaline rather than acid.
In abundantly metaphorical and expressive language he describes a fen in Cambridgeshire, fields in Zambia and Ukraine, and the Little Bighorn battlefield in Montana, USA.
Mr A Fenner Brockway, presiding on Saturday at the annual conference of the No More War Movement at Birmingham said that those who desired to prevent another war must work in two directions.
A month later, after a meeting with the Food & Drug Administration, American Home Products (now Wyeth) withdrew Redux and a related diet drug, Pondimin, from the market; the two drugs were part of a "fen-phen" craze (named for dexfenfluramine, the active ingredient in Redux, and phentermine) that had swept up 6 million patients.
Given our previous results that the vaccinia virus (VACV) G5R protein may be structurally similar to a FEN-1-like protein and a recent finding that poxviruses encode a primase function, we undertook a series of in silico analyses to identify whether VACV also encodes a PCNA-like protein.
A fen-like matrix was the main picture in both groups.
FEN-1 is thought to help process Okazaki fragments during DNA replication by precisely removing flaps to leave a product that can be directly ligated (Tsutakawa et al. 2011), therefore any lesions left unrepaired in a FEN-1 mutant may be the source of recombinogenic damage in a fen-1 rec12 mutant.
