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: 6790

#Unit 3. Fundamental Processes

The miRNAs used in RNAi are produced as large RNA primary transcripts called pri-miRNA that are self-complementary and can automatically fold into a double-strand hairpin structure.

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#Id: 680

#Unit 3. Fundamental Processes

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#Id: 2213

#Unit 11. Evolution and Behavior

Gradualism is Darwin’s proposition that the differences between even radically different organisms have evolved by small steps through intermediate forms,  not by leaps

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#Id: 2880

#Unit 13. Methods in Biology

The denser a biological structure is, the faster it sediments in a centrifugal field.

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#Id: 7124

#Unit 6. System Physiology – Plant

The rise in intracellular calcium blocks K+ channels in guard cells