Based on Current Knowledge of the Tip Links, the Next

question 10

Multiple Choice

Based on current knowledge of the tip links, the next experimental step(s) should be to

• A) characterize the energetics (e.g., energy of activation) of deformation of the stereocilia.
• B) determine the minimum amount of force needed to bend the stereocilia to threshold so that action potentials fire.
• C) determine the specificity (e.g., potassium? calcium?) of the transduction ion channel.
• D) determine the kinetics of ion transport through the transduction channel.
• E) purify, characterize, and then clone the proteins of which the tip links are composed.

---

Definitions:

Reproductive Isolation

A set of mechanisms or barriers that prevent different species from breeding with each other, thus maintaining species boundaries.

Genetically Modified

Organisms whose genetic material has been artificially manipulated in a laboratory through genetic engineering.

Oil Spills

Unintentional release of petroleum products into the environment, usually in water bodies, leading to pollution and harming marine life.

Ice Age

A period of long-term reduction in the temperature of the Earth's surface and atmosphere, leading to the expansion of continental and polar ice sheets and alpine glaciers.