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Gene Expression
Regulation
Question | Answer |
---|---|
When does the Regultion of Gene Expression take place? | occurs mostly at the Transcription stage |
What is "Regulation of Gene Expression"? | controls Protein Synthesis for energy efficiency and to enable cell SPECIALIZATION |
What is the 1st step of Gene Induction? | activated Transcription Factor attaches to Promoter Region in DNA |
What is the 2nd step of Gene Induction? | attachment of RNA Polymerase II |
What is the 3rd step of Gene Induction? | Increasing PRODUCTION of a SPECIFIC ENZYME or Protein |
What is Gene Repression? | ABSENCE/Inhibition of Transcription Factors |
What is the fucntion of Gene Repression? | prevents attachment to Promoters, BLOCKING Transcription |
Why does Gene Expression need to be regulated? | all cells would be the same if not |
How many Genes are contained in cell DNA? | 30,000 Genes |
Why don't cells represent every Gene that they carry? | most Genes are not turned on |