The Loss of Allelic Variation Due to an Event That

question 7

Multiple Choice

The loss of allelic variation due to an event that decreases the size of the entire population is called

• A)gene flow.
• B)genetic drift.
• C)founder effect.
• D)population bottleneck.
• E)selection.

---

Definitions:

Graded Potential

A shift in the electrical charge across a neuron's membrane, varying in size and leading to the generation of an action potential if a certain threshold is reached.

Action Potentials

A rapid rise and fall in voltage or membrane potential across a cellular membrane, typically in nerve or muscle cells, allowing for the transmission of signals.

Ligand-Gated Channels

Ion channels in cell membranes that open or close in response to the binding of a specific signaling molecule (ligand), allowing ions to pass across the membrane.

Metabotropic Channels

Metabotropic Channels refer to a type of membrane receptor in cells that acts through a second messenger system, ultimately affecting other ion channels or cellular processes.