The short (∼20 amino acid) C-terminal tails of both α- and β-tubulin that protrude from the microtubule are enriched in glutamic and aspartic acids, the surface of the microtubule possesses a net negative charge.

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#Id: 2343

#Unit 3. Fundamental Processes

Promoters with sequences closer to the consensus are generally “stronger” than those that match less well

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#Id: 4507

#Unit 13. Methods in Biology

Electrocorticography, involving surgical placement of electrodes, is sometimes called "intracranial EEG". 

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#Id: 3660

#Unit 3. Fundamental Processes

SELB ∙ GTP ∙ Sec–tRNASec reads the UGA codon as Sec rather than “Stop,” provided that the ribosomally bound mRNA has a hairpin loop on the 3′ side of the UGA specifying Sec.

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#Id: 1653

#Unit 4. Cell Communication and Cell Signaling

Monomeric form of antibody IgA found on the blood, while  dimeric form of antibody IgA found in the Gut.

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#Id: 1045

#Unit 5. Developmental Biology

The highly proliferative mesenchyme that fuels limb bud growth is known as the progress zone mesenchyme