HnRNA

Heterogeneous nuclear RNA (hnRNA)
A variety of RNAs found in the nucleus, including primary transcripts.
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hnRNA. See Heterogeneous nuclear RNA.
Homologous chromosomes. Chromosomes that have the same linear arrangement of genes--a pair of matching chromosomes in a diploid organism. See Chromosomes.

hnRNA: Heterogeneous nuclear RNA; refers collectively to the variety of RNAs found in the nucleus, including primary transcripts, partially processed RNAs and snRNA. The term hnRNA is often used just for the unprocessed primary transcripts, however.

Heterogeneous nuclear RNA (hnRNA). The name originally given to large RNA molecules found in the nucleus, which are now known to be unedited mRNA transcripts, or pre-mRNAs. (See RNA.) HGH. See Human growth hormone. hnRNA.

The model for formation of the spliceosome active site involves an ordered, stepwise assembly of discrete snRNP particles on the hnRNA substrate.

heterogenous nuclear RNA (hnRNA)
the nuclear RNA that still contains the introns (also referred to as pre-mRNA)
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...

Problem 11: Features of hnRNA
Which of the following features would you NOT expect to find in heterogeneous nuclear RNA (hnRNA)?
A.
intron ...

heterogeneous nuclear RNA (hnRNA) - RNA transcripts freshly synthesized by RNA polymerase II in the nucleus; also known as primary RNA transcript ...

In eukaryotic cells, the newly-formed mRNA transcript (also called heterogenous nuclear RNA or hnRNA) must be further modified before it can be used.

(Science: molecular biology) The nucleus contains rNA that has just been synthesised, but in addition there is some that seems not to be released or is only released after further processing, the heterogenous nuclear RNA (hnRNA) and small RNA ...

See also: Biology, RNA, Trans, Intron, Protein