The phrase "a tail at the" is not complete and lacks context, making it difficult to determine its correctness in written English.
It could potentially be used in a context where you are describing something related to a tail, but without additional information, its usage is unclear.
Example: "The dog wagged a tail at the sight of its owner."
Alternatives: "a tail behind the" or "a tail on the".
The 5ʹcapped BMV RNA2 contains a tRNA-like structure instead of a poly(A) tail at the 3´end.
At one end was the wave of a tail, at the other, the gawp of a mouth.
The long 3′-untranslated regions (UTR) of 2446 bp contained three typical AATAAA censensus sequences for mRNA polyadenylation followed by the poly(A) tail at the 3′ end.
The lipophilicity of these compounds can be increased by adding a tail at the good position without modifying their ability of donating a hydrogen atom.
They also have a "tail" at the bottom of the wing.
A group member in another class, Mary's group, suggested, "Maybe we could make something with like, maybe like a tail at the end (placing her hands together to make a triangle shape, with fingers pointing up).
DNA fragments corresponding to Cas9 and the chimeric RNA were transcribed to RNAs in vitro by the T7 RNA polymerase and the Cas9 RNA was further modified by adding a translation-required cap at the 5′-end and a poly-A tail at the 3′-end to make it resemble an authentic mRNA.
To elongate the miRNAs, total RNAs were first treated with E. coli poly-A polymerase (PAP) to generate a poly-A tail at the 3'-end of each RNA molecule.
Thus, each mRNA contains the spliced leader sequence (SL) at the 5' end and the poly-A tail at the 3' end.
The complete genome of the virus consists of 8,747 nucleotides (nt), excluding the poly-A tail at the 3′ end.
To elongate the piRNAs, total RNA was first treated with Escherichia coli poly-A polymerase to generate a poly-A tail at the 3′-end of each RNA molecule.
