Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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![**Question: Identifying Cancer Risk Factors in Genes**
Fill in the blank: If a ______ is inactive, a cell may become cancerous.
a. proto-oncogene
b. tumor suppressor gene
c. oncogene
**Explanation:**
This multiple-choice question is focused on the genetic factors that can influence the development of cancer. The correct answer is "b. tumor suppressor gene." Tumor suppressor genes are responsible for restricting cell division and ensuring that cells do not grow uncontrollably. If these genes become inactive or damaged, it can lead to cancerous growths.
Proto-oncogenes and oncogenes are also involved in cell growth, but they function differently. Proto-oncogenes, when mutated, can become oncogenes, which promote excessive cell proliferation. Understanding these genetic components is crucial for comprehending how cancer develops at a cellular level.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F88a4d88f-5648-4e4d-a49c-10af3e87c66c%2F2f3747fc-3537-4b06-ad01-16ac5efbdeeb%2Ffpkaan_processed.png&w=3840&q=75)
Transcribed Image Text:**Question: Identifying Cancer Risk Factors in Genes**
Fill in the blank: If a ______ is inactive, a cell may become cancerous.
a. proto-oncogene
b. tumor suppressor gene
c. oncogene
**Explanation:**
This multiple-choice question is focused on the genetic factors that can influence the development of cancer. The correct answer is "b. tumor suppressor gene." Tumor suppressor genes are responsible for restricting cell division and ensuring that cells do not grow uncontrollably. If these genes become inactive or damaged, it can lead to cancerous growths.
Proto-oncogenes and oncogenes are also involved in cell growth, but they function differently. Proto-oncogenes, when mutated, can become oncogenes, which promote excessive cell proliferation. Understanding these genetic components is crucial for comprehending how cancer develops at a cellular level.
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