When Natural Selection Tends to Split a Population into Two

question 23

Multiple Choice

When natural selection tends to split a population into two phenotypic groups, it is called:

• A)gene flow.
• B)genetic drift.
• C)balanced polymorphism.
• D)stabilizing selection.
• E)coevolution.

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Definitions:

Ring Strain

The destabilization that occurs in a cyclic molecule due to the geometric or electronic constraints of the ring system.

Cyclooctane

A cyclic hydrocarbon with the formula C8H16, featuring an eight-carbon ring, known for its conformational flexibility and role in studying ring strain.

Cyclopropane

A cyclic alkane consisting of three carbon atoms connected in a ring, notable for its strain and use in organic synthesis.

Newman Projection

A method of visualizing the spatial arrangement of atoms in a molecule, showing how they are connected from the perspective of a bond axis.