Selecting specialist registrars by station interview

P E M Smith1, F D Dunstan, C M Wiles

  • 1South Wales Neurology Rotation. SmithPE@cardiff.ac.uk

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Frequency-dependent Selection01:21

Frequency-dependent Selection

When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.Positive Frequency-Dependent SelectionIn positive...
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Regioselectivity of Electrophilic Additions to Alkenes: Markovnikov's Rule

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Regioselectivity and Stereochemistry of Hydroboration

A significant aspect of hydroboration–oxidation is the regio- and stereochemical outcome of the reaction.
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