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Author Question: The error theory of aging proposes a cause-and-effect relationship between the genetic activity of ... (Read 60 times)

SGallaher96

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on: Jul 11, 2018
The error theory of aging proposes a cause-and-effect relationship between the genetic activity of body cells and the effects of aging. Place the following steps in the error theory of aging in the correct chronological order. Use all the options.
 
  A) Organ, tissue, and system malfunction
  B) Perpetuation of mutation during cell divisions
  C) DNA mutation
  D) Overall decline in body functions
  E) Decline in body functions

Question 2

A 30-year-old African American had surgery 6 months ago. Her incisional site is now raised, indurated, and shiny. This tissue growth is most likely a(n)
 
  a. angioma.
  b. keloid.
  c. melanoma.
  d. nevus.


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ciecieme

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Reply #1 on: Jul 11, 2018
Answer to Question 1

C, B, E, A, D
Feedback:
The error theory of aging proposes that DNA mutations occur on a single-cell level and are perpetuated in subsequent cell divisions. The overall number of mutant cells in the body increases and causes deleterious effects on tissues and systems and eventual decline in body function.

Answer to Question 2

B
Keloids, which originate in scars, are hard and shiny and are seen more often in African Americans than Caucasians.


SGallaher96

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Reply 2 on: Jul 11, 2018
Gracias!

nguyenhoanhat

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Reply 3 on: Yesterday
:D TYSM

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