Microtubules are polymers of the protein tubulin.

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#Id: 8448

#Unit 1. Molecules and their Interaction Relevant to Biology

In a typical a-helix of 12 (or n) residues, there are 8 (or n-4) hydrogen bonds.

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#Unit 2. Cellular Organization

N-linked oligosaccharides

carbohydrate chains attached to the amide nitrogen of asparagine

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#Id: 8135

#Unit 2. Cellular Organization

The Golgi consists of four functionally distinct regions:

a. Cis compartments

b. Medial compartments

c. Trans compartments

d. Trans-Golgi network

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#Id: 2547

#Unit 13. Methods in Biology

Primer sequence also· affects PCR efficiency. For example, if the primers used for PCR have complementary regions, primer dimers will be formed, and PCR efficiency will markedly decline.

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#Id: 5563

#Unit 7. System Physiology – Animal

This gradient is produced by the operation of the loops of Henle as countercurrent multipliers and maintained by the operation of the vasa recta as countercurrent

exchangers