'Rrna genes' diaporamas de présentation

What does the word Promoter mean?

What does the word Promoter mean?. It is the place at which RNA Pol II binds. But the word is incorrectly used to describe Enhancers plus Promoter. Initiation by RNA Polymerase II. TFIID recognition site is TATAA. How often is this site found in the genome? 1/4 5.

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Section M Transcription in Eukaryotes

Molecular Biology Course. Section M Transcription in Eukaryotes. Section M Transcription in Eukaryotes. Topics M1. The three RNA Polymerases : characterization and function M2. RNA Pol I genes : the ribosomal repeat M3. RNA Pol III genes : 5S and tRNA transcription

925 views • 66 slides

Section M Transcription in Eukaryotes

Molecular Biology Course. Section M Transcription in Eukaryotes. Section M Transcription in Eukaryotes. Topics M1. The three RNA Polymerases : characterization and function M2. RNA Pol I genes : the ribosomal repeat M3. RNA Pol III genes : 5S and tRNA transcription

832 views • 66 slides

Overview of introns and their structure

Overview of introns and their structure. DNA Helix Mosaic featured on the cover of Nature , February 15, 2001. Mathieu Lajoie. Discovery of introns. 1977 Research Groups working on adenovirus at MIT and Cold Spring Harbor reported that mRNAs were:

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9 The Nucleus

9 The Nucleus. Student Learning Outcomes: Nucleus distinguishes Eukaryotes from Prokaryotes Explain general structures of Nuclear Envelope, Nuclear Lamina, Nuclear Pore Complex Explain movement of proteins and RNA between Nucleus and Cytoplasm

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A3 Ribosomal RNA (rRNA)

A3 Ribosomal RNA (rRNA). Ribosomes( ??? ) Transcription and processing of rRNA genes in prokaryotes Transcription and processing in eukaryotes. 1. Ribosomes. Macromolecules composed of rRNA bound to protein. Function : bind to mRNA and transcribe it to produce protein

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r-RNA silencing

r-RNA silencing. A. Introduction- rRNA produced in nucleoli Recall function of rRNA- interact with proteins to produce ribosomes for mRNA translation into proteins. m. Nucleolar dominance- in interspecific cell hybrids, only rRNA genes inherited from one parent are transcribed.

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Ribosomal RNA ( rRNA ) Genes

Ribosomal RNA ( rRNA ) Genes. Laura McCoy. Background Information. rRNA genes are a multi-gene family Located in the nucleolus of the cell Genes are found in tandem arrays rRNA plus ribosomal proteins form ribosomes Mitochondria and chloroplasts have their own rRNA genes. Types.

335 views • 8 slides