Biochemistry 2280A Lecture Notes - Lecture 23: Tata Box, Sigma Factor, Pyrophosphate
12 Dec 2016
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*all readings are testable: dna: the blueprint of life. Dna itself is an inert chemical in order to code for the life, the information within dna has to be expressed. If it"s not expressed, dna isn"t effective. The human genome contains around 25,000 diffferent protein encoding genes. In any one cell type, around 10,000 genes are expressed at various levels. The expression of the correct genes is essential for growth and differentiation of all cells. It depends on which genes gets expressed that makes different cells do different things: significance of gene expression. Many diseases are due to altered expression of one or more genes. By manipulating gene expression, we can prevent or reverse diseases: central dogma. Dna transcribed into rna translated to become protein: q: there are 2 steps at which genes can be regulated. False - there are many more steps at which genes can be regulation.
