Canadian Medical Guide > Biological Sciences > Genetic Structures > Genome Components > Gene Components Terms and Definitions

Gene Components

Medical Definition:	The parts of the gene sequence that carry out the different functions of the GENES.
Guide Notes:	GEN; prefer specifics

Gene Components Categories.

	Exons - The parts of a genetic transcript remaining after the INTRONS are removed and which are spliced together to become a messenger or structural RNA.
	Expressed Sequence Tags - Partial cDNA (DNA, COMPLEMENTARY) sequences that are unique to the cDNAs from which they were derived.
	Transcription Initiation Site - The first nucleotide of a transcribed DNA sequence where RNA polymerase (DNA-DIRECTED RNA POLYMERASE) begins synthesizing the RNA transcript.

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