Using Biotechnology to Modify the Genetic Material of Living Cells

question 38

Essay

Using biotechnology to modify the genetic material of living cells so that they will produce new substances or perform a new function is called___________ .

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Definitions:

Neural Pathways

Networks of neurons that transmit signals between different parts of the brain or from the brain to the rest of the body.

Refractory Periods

The time period immediately following an action potential during which a neuron is unable to fire another impulse.

Phrenology

A now-discredited theory which postulated that bumps on the skull could predict mental traits and character.

Myelin Sheath

A fatty tissue layer segmentally encasing the axons of some neurons; enables vastly greater transmission speed as neural impulses hop from one node to the next.