Clustered Regularly Interspaced Short Palindromic Repeats CRISPR consist of repeated sequences (each 30 bp long and highly conserved within a given cluster) interleaved with spacer sequences of similar length but highly divergent sequence.

TLS Online TPP Program

#Id: 1713

#Unit 4. Cell Communication and Cell Signaling

IgE Antibodies Act by Cross-Linking Fc Receptors on the Surfaces of Innate Immune Cells. Including mast cells, basophils, and eosinophils.

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#Id: 6385

#Unit 2. Cellular Organization

Promoter mutations are also cis-acting. If they prevent RNA polymerase from binding at P-lac, the structural genes are never transcribed.

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#Id: 2775

#Unit 13. Methods in Biology

Methylation interference assay Dimethyl sulphate (DMS) methylates purines on DNA strand. Methylate DNA prior to adding protein. Protein binding is prevented at methylated sites. After treatment and removal of protein of interest, treat with piperidine or NaOH which cuts strand at modified bases.

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#Id: 3520

#Unit 2. Cellular Organization

TLS Online TPP Program

#Id: 9000

#Unit 6. System Physiology – Plant

The fixation of three molecules of CO2 into one molecule of triose phosphate requires six molecules of NADPH and nine of ATP (3 CO2 : 6 NADPH : 9 ATP ≡ CO2 : 2 NADPH : 3 ATP).