Which, if any, of the following statements is false? a) Most of the inherited changes in our DNA arise because of exposure to extracellular mutagens, including radiation sources and chemical mutagens. b) Most of the inherited changes in our DNA arise because of unavoidable endogenous errors in cellular mechanisms and harmful effects of certain natural molecules and atoms within our cells. c) Errors in DNA replication and DNA repair are a major source of mutations in our cells. d) Significant chemical damage is sustained by DNA because of its proximity to water molecules in our cells.

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter11: Genome Alterations: Mutation And Epigenetics
Section: Chapter Questions
Problem 6QP: Although it is well known that X-rays cause mutations, they are routinely used to diagnose medical...
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Which, if any, of the following statements is false?

a) Most of the inherited changes in our DNA arise because of exposure to extracellular mutagens, including radiation sources and chemical mutagens.

b) Most of the inherited changes in our DNA arise because of unavoidable endogenous errors in cellular mechanisms and harmful effects of certain natural molecules and atoms within our cells.

c) Errors in DNA replication and DNA repair are a major source of mutations in our cells.

d) Significant chemical damage is sustained by DNA because of its proximity to water molecules in our cells.

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