an ARS for autonomously replicating sequence, ARS elements are derived from origins of replication.

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#Id: 2259

#Unit 11. Evolution and Behavior

Directional selection favors individuals at one extreme of a phenotypic distribution that have greater reproductive success in a particular environment.

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#Id: 10129

#Unit 6. System Physiology – Plant

From that point, downward movement is described as acropetal (toward the apex). Movement of auxin from the apex of the root toward the root–shoot junction is also described as basipetal (toward the base).

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#Id: 8559

#Unit 1. Molecules and their Interaction Relevant to Biology

Dixon plot for competitive inhibition

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#Id: 6721

#Unit 8. Inheritance Biology

Horizontal gene transfer (lateral gene transfer) is the non-sexual movement of genetic information between genomes. 

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#Id: 4018

#Unit 7. System Physiology – Animal

When the potential reaches a threshold voltage of about −40 millivolts, the L-type calcium channels become “activated,” causing the action potential