Sodium channels can be blocked by a toxin called tetrodotoxin when it is applied to the outside of the cell membrane (activation gates)

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#Unit 3. Fundamental Processes

The lagging strand is synthesized discontinuously and the leading strand is synthesized continuously. This is called semidiscontinuous replication.

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#Unit 13. Methods in Biology

Waves are divided in various groups:

Alpha

Beta 

Delta  

Theta

Gamma 

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#Unit 6. System Physiology – Plant

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#Unit 13. Methods in Biology

BrdU is incorporated into the newly synthesized DNA, and is then detected with fluorescently labeled anti-BrdU antibodies

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#Unit 11. Evolution and Behavior

James Hutton and Charles Lyell – Uniformitarianism

Darwin was greatly influenced by Lyell’s teachings, and he adopted uniformitarianism in his thinking about evolution.