Chapter 5 Gene Expression: Transcription
Date Issued
2000
Date
2000
Author(s)
Wang, Yue-Wen
DOI
246246/2006092815540067
Abstract
1. Francis Crick (1956) named the flow of information from DNA RNAprotein the Central Dogma.
2. Synthesis of an RNA molecule using a DNA template is called transcription. Only one of the DNA strands is transcribed. The enzyme used is RNA polymerase.
3. There are four major types of RNA molecules:
a. Messenger RNA (mRNA) encodes the amino acid sequence of a polypeptide.
b. Transfer RNA (tRNA) brings amino acids to ribosomes during translation.
c. Ribosomal RNA (rRNA) combines with proteins to form a ribosome, the catalyst for translation.
d. Small nuclear RNA (snRNA) combines with proteins to form complexes used in eukaryotic RNA processing.
Publisher
臺北市:國立臺灣大學農藝學系
Type
learning object
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