Variance is a measure of how data points vary from the mean, whereas standard deviation is the measure of the distribution of statistical data.

TLS Online TPP Program

#Id: 9736

#Unit 6. System Physiology – Plant

The hydrolyzing enzyme, myrosinase (a thioglucosidase), is stored in different cells than its substrates. While myrosinase-containing cells are mostly glucosinolate-free, the so-called sulfur-rich cells (or S-cells) contain high concentrations of glucosinolates.

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#Id: 2727

#Unit 12. Applied Biology

Selectable reporter genes

Selectable marker genes include those conferring resistance to methotrexate (dhfr, isolated from Tn7 or plasmid R67); the antibiotics kanamycin (nptII, encoding neomycin phosphotransfcrase) and hygromycin (hptIV, encoding hygromycin phosphotransferase, .isolated from E. coli);

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#Id: 9054

#Unit 4. Cell Communication and Cell Signaling

The activated β2-adrenergic receptor induces GDP-->GTP exchange on a stimulatory G protein (Gs).

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#Id: 7577

#Unit 5. Developmental Biology

Capacitation is a transient event, and sperm are given a relatively brief window of competence during which they can successfully fertilize the egg. As the sperm reach the ampulla, they acquire competence—but they lose it if they stay around too long

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#Id: 808

#Unit 3. Fundamental Processes

A promoter is defined by the presence of short consensus sequences at specific locations.