S1 mapping is used to locate the 5’- or 3’-ends of RNAs and to quantify the amount of a given RNA in cells at a given time. 

TLS Online TPP Program

#Id: 3710

#Unit 2. Cellular Organization

if an individual has only one a gene, the excess b chains form the unusual tetramer b4, which causes hemoglobin H (HbH) disease. The complete absence of a genes results in hydrops fetalis, which is fatal at or before birth.

TLS Online TPP Program

#Id: 7758

#Unit 1. Molecules and their Interaction Relevant to Biology

A molecule is the smallest part of a substance that has the physical and chemical properties of that substance. In some respects, a molecule is similar to an atom. A molecule, however, is composed of more than one atom.

TLS Online TPP Program

#Id: 6035

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 9686

#Unit 4. Cell Communication and Cell Signaling

Fat and muscle cells express large amounts of the insulin-responsive glucose transporter GLUT4

TLS Online TPP Program

#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.