C2 oxidative photosynthetic carbon cycle is essential for land plants for retrieving the carbon atoms of 2-phosphoglycolate.

TLS Online TPP Program

#Id: 5453

#Unit 7. System Physiology – Animal

During the relative refractory period, stronger than normal stimuli can cause excitation

TLS Online TPP Program

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#Unit 6. System Physiology – Plant

TLS Online TPP Program

#Id: 559

#Unit 2. Cellular Organization

The O1 operator extends from position -5 just upstream of the mRNA start point to position +21 within the transcription unit.

TLS Online TPP Program

#Id: 6095

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 6302

#Unit 3. Fundamental Processes

During abortive Transcription, RNA Polymerase Remains Stationary and Pulls Downstream DNA into Itself RNA polymerase produces and releases short RNA transcripts of 10 nucleotides (abortive synthesis) before escaping the promoter, 

 

During abortive Transcription, RNA Polymerase Remains Stationary and Pulls Downstream DNA into Itself

RNA polymerase produces and releases short RNA transcripts of 10 nucleotides (abortive synthesis) before escaping the promoter, entering the elongation phase, and synthesizing the proper transcript. It has long been unclear how the enzyme’s active site translocates along the DNA template during initial abortive cycles of transcription. Three general models were proposed:- “transient excursion”, “Inchworming”, “Scrunching”