Binding of the repressor to the operator sequence blocks binding of RNA polymerase and so inhibits transcription.

TLS Online TPP Program

#Id: 2284

#Unit 3. Fundamental Processes

Presence of the s-subunit permitted recognition of authentic RNA polymerase binding sites

TLS Online TPP Program

#Id: 9129

#Unit 10. Ecological Principles

Macroparasitic infections, the immunological response is short-lived, the infections tend to be persistent.

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#Id: 3517

#Unit 2. Cellular Organization

A gene family is defined as a group of genes that encode related or identical products as a result of gene-duplication events.

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#Id: 2181

#Unit 11. Evolution and Behavior

Evolution by natural selection occurs if Genetic variation must leads by Ecotypes. Ecophene is not be selected by natural selection

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#Id: 1750

#Unit 4. Cell Communication and Cell Signaling

Class II MHC transcriptional activator called CIITA and another transcription factor called RFX, have both been shown to activate the promoter of class II MHC genes.

Defects in these transcription factors cause one form of bare lymphocyte syndrome.