BIOSC-101 Lecture Notes - Lecture 7: Small Nuclear Rna, Ribosomal Rna, Transposable Element
26 Aug 2020
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Alternative splicing products different isoforms of a protein by introducing variation in the incorporation of the exons or coding regions of mrna. Non-protein coding functional rna splicing or other rna processing reactions. Small nuclear rna (snrna): confined to the nucleus, many are involved in. Ribosomal rna: required in the ribosomes for protein synthesis. Non-coding rna (ncrna): is not translated to proteins, used to regulate gene expression of the transcriptional and post transcriptional levels. Simple-sequence dna, which has short repeats, includes micro-satellites (dna regions with short repeated sequences (1-13 bp)) and mini-satellites (large repeated sequences (14-100 bp)) (dna fingerprinting is a technique to compare lengths of mini satellites using southern blotting) Interspersed repeats: longer sequences, composed of transposable elements genome. Transposition during dna synthesis results in multiple gene copies. Dna transposing: small piece of dna that inserts itself into another place in the. Retrotransposing: transpose as dna or rna that is then reverse transcribed to.
