Which of the Following Are Thought to Cause Aging

question 33

Multiple Choice

Which of the following are thought to cause aging?

• A)Death genes are turned on later in life causing cells to deteriorate.
• B)Free radicals damage the DNA of a cell past the point where successful accurate replication can occur.
• C)Mitochondrial DNA damage results in the loss of proteins and therefore energy production ability.
• D)After a certain number of cell divisions,a cell line is pre-programmed to stop dividing and dies.
• E)All of these are theories on why we age.

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Definitions:

Accrual-Based

An accounting method that records revenues and expenses when they are incurred, regardless of when cash is exchanged.

Mutual Ownership

A form of ownership where an institution, such as a mutual insurance company or building society, is owned by its members or policyholders.

Direct Control

The ability of an entity to influence the operations and financial decisions of another entity directly, often through ownership of voting shares.

Indirect Control

The ability to influence or dictate the actions of another company or entity, not through direct ownership, but through other means such as contractual agreements or through a third party.