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Questions and Answers
Which of the following is NOT a biological effect of radiation on DNA?
What is the principal target for the biologic effects of radiation?
What is the structure of DNA?
What is the backbone of each DNA strand made of?
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What is the function of DNA repair pathways?
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Study Notes
Radiation and DNA
- Mutagenesis is a biological effect of radiation on DNA
- Radiation can cause gene mutation, chromosomal aberrations, and genetic instability
Target of Radiation
- The principal target for the biologic effects of radiation is DNA itself
DNA Structure
- DNA is a double-stranded helix
- Two complementary strands of nucleotides twisted together
DNA Backbone
- The backbone of each DNA strand is made of sugar molecules linked by phosphate groups
DNA Repair
- The function of DNA repair pathways is to correct damaged DNA-lnduced mutations
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Description
Test your knowledge on the molecular mechanisms of DNA and chromosome damage and repair. Learn about DNA damage caused by ionizing radiation, chromosome aberrations, measuring DNA strand breaks, and DNA repair pathways. Explore the biologic effects of radiation on DNA and its implications for cell killing, carcinogenesis, and mutation.
