Lecture notes
RNA Transcription Notes
- Module
- Cells to Systems (M22177)
- Institution
- University Of Portsmouth (UoP)
PDF file containing notes from RNA Transcription lesson for Biology. Content is for A-level students
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🎆RNA Transcription
Created @January 20, 2025 4:20 PM
Class Cells to Systems
Nucleotide Functions
ATP for metabolism
NAD+ as enzyme cofactor
cAMP signal transduction
Nucleic Acid Functions
Storing genetic info as DNA
Transmitting gene info as mRNA
Processing gene info as ribosomes
Using tRNA and rRNA as protein synthesis
Expression regulation as siRNA and miRNA
DNA Helical Structure
Consists of two nucleotide chains coiling around each other
Sugar phosphate are the backbones of two spiral strands externally of the
helix
Nitrogenous bases extend into centre of helix
RNA Transcription 1
, Hydrogen Bonding
Non- covalent attraction helps maintain double helix
Adenine forms 2 H bonds w/ Thymine
Cytosine forms 3 H bonds w/ guanine
H bonding pattern= Base Pairing
RNA Structure
Single stranded
Can’t form Beta- form helix, it becomes helical once alpha form takes
place. Transitions from a deep/ narrow groove to a wide minor groove
Secondary structure in rRNA/tRNA could be mRNA
RNA Molecules are either hairpin structures or stem loops
mRNA contains instructions for protein construction
Ribosomal RNA( rRNA)
Complicated structure
Completes ribosomes
Ribosomes
Protein factories
Big macromolecular assemblies
Lots of rRNA molecules
Central Dogma
RNA Transcription 2
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