Endocytic vesicles are membranous particles that transport proteins through endocytosis; also Endonucleases cleave bonds within a nucleic acid chain; they may be specific for RNA or for singlestranded of double- stranded dna Endoplasmic reticulum is a highly convoluted sheet of membranes, extending from the outer Enhancer element is a cis-acting sequence that increases the utilization of(some)eukaryotic promoters,and can function in either orientation and in any location(upstr eam or downstream) Envelopes surround some organelles(for example, nucleus or mitochondrion)and consist of brane consisting of the usual lipid bilay Epigenetic changes influrence the phenotype without altering the genotype. They consist of changes in the properties of a cell that are inherited but that do not represent a change in genetic information Episome is a plasmid able to integrate into bacterial DNA Epistasis describes a situation in which expression of one gene wipes out the phenotypic effects of another gene Essential gene is one whose deletions is lethal to the organism(see also lethal locus) Established cell lines consist of eukaryotic cells that have been adapted to indefinite growth in culture (they are said to be immortalized Eubacteria comprise the major line of prokaryotes Euchromatin comprises all of the genome in the interphase nucleus except for the Evolutionary clock is defined by the rate at which mutations accumulate in a given gene Excision-repair sy stems remove a single-stranded sequence of DNA cont aining damaged or mispaired bases and replace it in the duplex by synthesizing a sequence complementary to the remaining strand Exocytosis is the process of secreting proteins from a cell into the medium, by transport in membranous vesicles from the endoplasmic reticulum, through the Golgi, to storage vesicles, and finally (upon a regulatory signal) through the plasma membrane Exocytic vesicles(also secretory vesicles) are membranous particles that transport and store proteins during excytosis Exon is any segment of an interrupted gene that is represented in the mati Exonucleases cleave nucleotides one at a time from the end of a polynucleotide chain;they may be specific for either the 5or 3'end of DNA or RNA Expression vector is a cloning vector desined so that a coding sequence inserted at a particular site will be transcribed and translated into protein Extranuclear genes reside outside the nucleus in organelles such as mitochondria and10 Endocytic vesicles are membranous particles that transport proteins through endocytosis; also known as clathrin-coated vesicles. Endonucleases cleave bonds within a nucleic acid chain; they may be specific for RNA or for singlestranded of double-stranded DNA. Endoplasmic reticulum is a highly convoluted sheet of membranes, extending from the outer layer of the nuclear envelope into the cytoplasm. Enhancer element is a cis-acting sequence that increases the utilization of (some) eukaryotic promoters, and can function in either orientation and in any location (upstream or downstream) relative to the promoter. Envelopes surround some organelles (for example , nucleus or mitochondrion) and consist of concentric membranes, each membrane consisting of the usual lipid bilayer. Epigenetic changes influrence the phenotype without altering the genotype. They consist of changes in the properties of a cell that are inherited but that do not represent a change in genetic information. Episome is a plasmid able to integrate into bacterial DNA. Epistasis describes a situation in which expression of one gene wipes out the phenotypic effects of another gene. Essential gene is one whose deletions is lethal to the organism (see also lethal locus). Established cell lines consist of eukaryotic cells that have been adapted to indefinite growth in culture (they are said to be immortalized). Eubacteria comprise the major line of prokaryotes. Euchromatin comprises all of the genome in the interphase nucleus except for the heterochromatin. Evolutionary clock is defined by the rate at which mutations accumulate in a given gene. Excision-repair systems remove a single-stranded sequence of DNA containing damaged or mispaired bases and replace it in the duplex by synthesizing a sequence complementary to the remaining strand. Exocytosis is the process of secreting proteins from a cell into the medium, by transport in membranous vesicles from the endoplasmic reticulum, through the Golgi, to storage vesicles, and finally (upon a regulatory signal) through the plasma membrane. Exocytic vesicles (also secretory vesicles) are membranous particles that transport and store proteins during excytosis. Exon is any segment of an interrupted gene that is represented in the mature RNA product. Exonucleases cleave nucleotides one at a time from the end of a polynucleotide chain; they may be specific for either the 5’ or 3’ end of DNA or RNA. Expression vector is a cloning vector desined so that a coding sequence inserted at a particular site will be transcribed and translated into protein. Extranuclear genes reside outside the nucleus in organelles such as mitochondria and