GENE EXPRESSION II Flashcards
___________RNA contains the codons that specifies the sequence of amino acids in protein
messenger RNA
________ RNA has the anticodon and the carrier of amino acid
transfer rna
____________ becomes part of the ribosome
ribosomal RNA
__________ RNA is involved in chromatin remodeling
long noncoding RNA
____________ involved in removal of introns and splicing of exons
small nuclear RNA
________ and _________ RNA modulates gene expression
micro and silencing
gene is a segment of DNA that determines a single character or phenotype
gene
_________ is a segment of DNA that codes for protein or RNA
molecular definition
gene
a section of a DNA or RNA molecule that codes for a specific polypeptide in protein synthesis
Cistrons
coding segments of the gene
exons
intervening segments of DNA that do not code for the amino acid sequence of the polypeptide
Introns
codes for polypeptides and RNA’s
structural genes
non structural genes
_______– one that serves as a starting point for reading the genetic code
___________- one that synthesizes the repressor
operator gene
regulator gene
a linear array of genes involved in a metabolic pathway e.g. lac operon and trp operon
operon
smallest unit of genetic expression codes for a subunit of a protein
(one cistron, one subunit concept)
cistron