DNA (Replication) → Transcription → RNA → Translation → Protein
DNA contains the genome
Genes: DNA packaged into discrete units
replication: process of copying genome
DNA polymerase: enzymes that catalyze the replication process
Transcription: DNA is transcribed into RNA by RNA polymerase
Translation: nucleic acid is translated into protein
takes place on ribosome
Selective expression: although each cell has all the DNA information to make all tissues, it expresses different genes which define function of cell or tissue