The bacterial chromosome is a single replicon; thus, the frequency of replication cycles is controlled by the number of Initiation events at the single origin.

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#Id: 2844

#Unit 13. Methods in Biology

The glucose uniporter GLUT1 can be purified from the solubilized mixture by antibody affinity chromatography on a column containing either a GLUT1-specific monoclonal antibody or an antibody specific for the epitope tag, then incorporated into liposomes made of pure phospholipids.

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#Id: 4501

#Unit 13. Methods in Biology

In augmented unipolar limb lead, two of the limbs are connected through the negative terminal of the electrocardiograph, and the third limb is connected to the positive terminal.

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#Id: 3513

#Unit 2. Cellular Organization

In the fruit fly, gene sizes have a bimodal distribution—many are short but some are quite long

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#Id: 8150

#Unit 2. Cellular Organization

Sar1 is the only GTPase switch protein activated at the ER membrane

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#Id: 8011

#Unit 10. Ecological Principles

                                   Richard hypothesis 

d/w = resource separation ratio.

d/w < 1, species cannot coexist;

1 < d/w < 3, there will be some competition between species

d/w > 3, species coexist harmoniously