Exons are the regions of
DNA within a
gene that are not spliced out and which are retained in the final m
RNA molecule.
Full article >>>Exons are the regions of
DNA within a
gene that are not spliced out from the
transcribed
RNA and are retained in the final
messenger RNA (m
RNA)
molecule.
Exons of many eukaryotic genes is interrupted by
segments of non-coding
DNA (
introns).
Full article >>>Exons and "The Curly Shuffle"
Introduction to
polymerase chain re
action (
PCR)
The universe of
exons ...
Full article >>>exons whose
sequence encodes the
polypeptide;
introns that will be removed from the m
RNA before it is
translated [Discussion];
a
transcription start site a
promoter ...
Full article >>>The inclusion or exclusion of different
exons to form different m
RNA transcripts. (See
RNA.)
Amino acid. Any of 20 basic building blocks of
proteins-- composed of a free amino (NH2) end, a free carboxyl (COOH) end, and a side group (R).
Full article >>>Exons -- portion of a
gene included in the
transcript of a
gene and survives
processing of the
RNA in the
cell nucleus to become part of a spliced messenger of a structural
RNA in the
cell cytoplasm; ...
Full article >>>Developed improved systems for recognition of
exons, splice junctions,
promoter elements and other features of biological importance, ...
Full article >>>Eukaryotic
DNA contains both
exons (
coding sequences) and
introns (intervening
sequences). In eukaryotic
cells this
DNA is used as a
template for the production of m
RNA, which must then undergo m
RNA splicing.
Full article >>>RNase protection assay: This is a sensitive method to determine (1) the amount of a specific m
RNA present in a complex mixture of m
RNA and/or (2) the sizes of
exons which comprise the m
RNA of interest.
Full article >>>To analyze
splicing in vitro, a
plasmid vector was prepared that contained the
intron and parts of the
exons downstream of a
phage RNA polymerase promoter.
Full article >>>Introns are cut out of the
message and the
exons are spliced together before the m
RNA leaves the
nucleus. There are several examples of identical
messages being processed by different methods, often turning
introns into
exons and vice-versa.
Full article >>>Eukaryotic
cells splice the
transcripts of a
gene, by keeping the
exons and removing the
introns. So, the
DNA strand needs to be in an
exon to be
expressed.
Full article >>>The
hypothesis put forward by Walter Gilbert that
exons code for functional units of a
protein and that
evolution of new genes has proceeded by
recombination or exclusion of
exons.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
Full article >>>Mature transcript of
RNA splicing which removes
introns and joins
exons in the
primary transcript. m
RNA usually has a 5' UTR, 3' UTR and polyA.
Related
3' UTR 5' UTR
Mature transcript Primary transcript Splicing cis-
splicing polyA
trans-splicing ...
Full article >>>any non-
intron section of the
coding sequence of a
gene; together, the
exons constitute the m
RNA and are
translated into
proteinSource: Jenkins, John B. 1990.
Human Genetics, 2nd Edition. New York: Harper & Row
...
Full article >>>
The remaining portions of mRNA are called exons. They are spliced together to form a mature mRNA transcript.
The Nucleus
DNA is located in an organelle called the nucleus.
Full article >>>
intron An intervening or noncoding segment of a gene; introns separate exons.
introvert A tubular, eversible extension of the head, bearing the mouth at its tip.
invagination An infolding of a layer of tissue to form a sac-like structure.
Full article >>>
In alternative splicing, the same pre-mRNA molecule, which consists of introns and exons, is spliced in different ways to produce mature mRNAs of different lengths and different functionality.
altruistic behavior
(al-troo-is-tik) ...
Full article >>>
A process by which introns are removed from primary See RNA transcripts leaving only exons that encode the amino acid sequence of a protein.
Related Terms: Intron ...
Full article >>>
exon - segment of DNA sequence in a gene that will be transcribed in the nucleus, spliced to other exons, and transported to the cytoplasm as a part of the mature mRNA; see also intron.
Back to the Top ...
Full article >>>
Each exon codes for a specific portion of the complete protein. In some species (including humans), a gene's exons are separated by long regions of DNA (called introns or sometimes "junk DNA") that have no apparent function.
Full article >>>
their function nor of the genetics of the organism. This can be accomplished because different gene features, such as exons, introns, promoters, polyadenylation signal etc are associated with unique patterns in the DNA sequence.
Full article >>>
Exons The coding sections of eukarotic genes, separated by introns.
Expression vector A vector which is designed to allow expression (transcription and translation) of the inserted section of DNA.
Full article >>>
RNA polymerase An enzyme that catalyzes the formation of RNA from NTPs, using a strand of DNA or RNA as a template. RNA splicing Removal of introns and joining of exons in a primary transcript (hnRNA).
Full article >>>
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