Which of the Following Is NOT Evidence for the Genetic

question 48

Multiple Choice

Which of the following is NOT evidence for the genetic clock theory of aging?

• A) children with progeria having genes that cause them to age rapidly
• B) the increased susceptibility to major illness that all elderly people experience
• C) the presence of specific alleles in centenarians that are not present in people who die younger
• D) the presence of certain alleles in people who die of heart disease, stroke, or dementia

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Definitions:

Unmyelinated C Fibres

Nerve fibers lacking a myelin sheath, involved in transmitting slow-conducting pain and temperature sensations.

Myelinated A-Delta Fibres

Fast-conducting nerve fibers wrapped in myelin sheath that transmit sharp, immediate pain signals to the brain.

Throbbing Pain

A type of pain characterized by a pulsating sensation, often in sync with the heartbeat, and usually indicative of inflammation or other underlying conditions.

Pain Pathway

The physiological process that transmits signals from the site of injury or ailment through the nervous system to the brain, where pain is perceived.