The single replicator 245 bp required for E. coli chromosomal replication is called oriC. Two repeated motifs are critical for oriC function.

The 9-mer motif is the binding site for the E. coli initiator, DnaA, and is repeated five times at oriC.

The 13-mer motif, repeated three times, is the initial site of ssDNA formation during initiation.

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#Id: 4953

#Unit 6. System Physiology – Plant

Type I phytochrome (phyA) in the light as a result of a combination of factors: inhibition of transcription, mRNA degradation, and proteolysis.

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#Id: 907

#Unit 13. Methods in Biology

Flow cytometry is majorly used with fluorescence dyes and attached antibodies for cells and dyes.

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#Id: 618

#Unit 2. Cellular Organization

Attenuator riboswitch (Leader sequence) region 1 is translated  till UGA (R1-2) in case of high trp concentration

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#Id: 4820

#Unit 13. Methods in Biology

The confidence level represents the proportion (frequency) of acceptable confidence intervals that contain the true value of the unknown parameter.

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#Id: 6129

#Unit 3. Fundamental Processes

When the initial removal involves lyase action, the endonuclease APE1 instead recruits DNA polymerase b to replace a single nucleotide. The nick is then sealed by the ligase XRCC1/ligase-3. This is called the short-patch pathway.