Eukaryotic transcription
Eukaryotic transcription I. Pre initiation complex II. Promoter melting and open complex formation III. Abortive initiation IV. Promoter escape V. […]
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Transcription in prokaryotes
Transcription in prokaryotes Initiation, 2. Elongation: 3. Termination: Rho independent or RNA based: Rho dependent or protein-based: Initiation Stage RNA
Transcription in prokaryotes Read Post »
TRANSCRIPTION
TRANSCRIPTION RNA polymerase-I or A: RNA polymerase-II or B: RNA polymerase-III or C: Promoters for RNA Polymerase II The transcription
DAMAGE AND REPAIR
DAMAGE AND REPAIR Introduction to DNA Damage and Repair: DAMAGE Types of Damage: Damage to DNA includes any deviation from
REPLICATION
REPLICATION Semi-conservative replication of Chromosomes in eukaryotes: Theoretically, there may be following three possible modes of DNA replication: Semiconservative mode
A, B and Z forms
A, B and Z forms Right handed DNA 1. ‘A’-DNA 2. B’-DNA or Right handed DNA 3. ‘C’-DNA and ‘D’-DNA
DNA STRUCTURE
DNA STRUCTURE DNA STRUCTURE – Biochemical composition of DNA (1) A pentose sugar -the 5 carbon deoxyribose sugar (2) 2.
NUCLEOSOME ORGANIZATION
NUCLEOSOME ORGANIZATION Important points of this model are as follows: SOLENOID MODEL: Ubiquitination, acetylation, methylation and phosphorylation of histones in
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Nuclear Pores
Nuclear Pores 1. Introduction to Nuclear Pores Nuclear pores are large protein complexes that penetrate the nuclear envelope, regulating the
NUCLEUS
NUCLEUS STRUCTURE OF NUCLEUS 1. Nuclear Membrane: 2. Nucleoplasm: Functions : 3. Chromatin Net or thread : Heterochromatin : Euchromatin