Definition of a Gene

Definition of a Gene: Mendel's Particles: unit of heredity responsible for phenotype Morgan's Loci : genes are on a chromosome Watson & Crick: Molecular Definition: double helical DNA (nucleotides) Functional definition: DNA sequence coding for specific polypeptide and tRNA, rRNA: But, also must include: - Pseudogene... - Split Genes... - Others DNA pieces: any definition must also include: -segments that code for rRNA, tRNA, snRNP's, miRNA's -also promoters, enhancer segments, regulator genes, operators?

• extinction des gènes par la chromatine environnante


• expression de gènes


• pb5'utr


• functional definition


• must also


• dna sequence coding


• séquences situées


• formation du complexe de transcription