'Transcription unit' diaporamas de présentation

Chapter 29 Transcription and the Regulation of Gene Expression

Chapter 29 Transcription and the Regulation of Gene Expression. Outline. Central Dogma: DNA ? RNA ? Protein Gene transcription in prokaryotes. Regulated of transcription in prokaryotes. Gene transcription in eukaryotes. Gene regulatory protein recognition of specific DNA sequences.

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Epigenetic mechanisms

Epigenetic mechanisms. Definition of epigenetics. Coined by Conrad Waddington to describe changes in gene expression during development refers to a change in gene expression without a change in the sequence of the gene or

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C u e r n a v a c a

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C u e r n a v a c a

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RNA and Transcription

RNA and Transcription. AP Biology. Central Dogma of Molecular Biology (Flow of Info in Cells). DNA ? RNA ? PROTEINS GENE = sequence of DNA with a specific function (final product = polypeptide OR RNA) RNA's = intermediates between DNA code and proteins that determine phenotype

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Chapter 19 ~ Microbial Models: The Genetics of Viruses and Bacteria

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Promoters and the Lac Operon

Promoters and the Lac Operon. Regulation in Prokaryotes. Adjust biochemistry quickly as environment changes Jacob and Monod ? extensive studies into the effects of lactose on expression of lactase genes Operon ? regulatory sequence in DNA for a specific gene(s) + the genes

349 views • 6 slides