CHRISTINA BOWERS PH.D
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topic 7.2:  Transcription and gene expression

Essential Idea:
  • Information stored as a code in DNA is copied onto mRNA

7.2U1:  Transcription occurs in a 5' to 3' direction.
7.2U2:  Nucleosomes help to regulate transcription in eukaryotes.
7.2U3:  Eukaryotic cells modify mRNA after transcription.
7.2U4:  Splicing of mRNA increases the number of different proteins an organism can produce.
7.2U5:  Gene expression is regulated by proteins that bind to specific base sequences in DNA.
7.2U6:  The environment of a cell and of an organism has an impact on gene expression.

7.2A1:  The promoter is an example of non-coding DNA with a function.

7.2Skill 1:  Analysis of changes in DNA methylation patterns.
LIfe is wonderfully complicated.   Stay curious.  Be skeptical.    And above all, ask many questions!