NATS 1670 Lecture Notes - Lecture 3: Dna Replication, Phosphodiester Bond, Deoxyribonucleotide
7 Jan 2018
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Wo functional roles of dna: duplication: the molecule must be replicated and transmitted in each cell division. Each daughter cell contains almost identical copies of the dna molecules as compared to its mother cell. Information: the molecule contains information expressed in the sequence of the nucleotides. The sequences are transcribed into rna to release their information. Transcription: dna itself is used only for storage & transmission, the sequence bases in the dna template is copied into an rna sequence, which is either. Is the first step in converting genetic information into proteins. Types of rna: mrna-- (messenger)- intermediate molecules used for transferring the information from. Dna to protein rrna-- (ribosomal)- functional rna molecules that are components of the ribosome trna-- (transfer)- functional rna molecules that serve as adapters in translation. Rna, which comes in several different forms, has only one polynucleotide chain, although this may be twisted back on itself, as in trna.
