1. "Central Dogma"Central dogma, originally proposed by Francis Crick,states that the flow of the genetic information in a cell is always from DNA to RNA to protein. Although the principle of central dogma is generallycorrect, exceptions have been found later. e.g. retroviruses like HIV make DNA from RNA.DNARNAProteinreplicationtranscriptiontranslation
2. Gene structure- A gene is the entire DNA sequences required to encode a functional polypeptide or RNA (tRNA, rRNA, miRNAetc). - Cistron is an old name for gene.-A pseudogene is DNA sequence that looks like a gene but is not transcribed, pseudogenes are most likely dead genes.
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