Podcast
Questions and Answers
What is the primary cause of damage in reactions involving high LET radiations?
What is the primary cause of damage in reactions involving high LET radiations?
- Compton scattering
- Radiation-induced bond breaks
- Absorption of energy by photoelectric interactions
- Direct ionization of atoms in molecules (correct)
What type of DNA damage is most likely to occur at low-dose exposures?
What type of DNA damage is most likely to occur at low-dose exposures?
- Cleavage of the hydrogen bond between bases
- Loss of a base
- Double strand breaks
- Single strand breaks (correct)
Which part of the cell is most sensitive to radiation?
Which part of the cell is most sensitive to radiation?
- Mitochondria
- Plasma membrane
- Endoplasmic reticulum
- Nucleus (correct)
What is the result of increased radiation exposure on the number of mutations?
What is the result of increased radiation exposure on the number of mutations?
What is the likely outcome of double strand breaks that are too close to repair?
What is the likely outcome of double strand breaks that are too close to repair?
What type of radiation is most likely to cause direct ionization of atoms in molecules?
What type of radiation is most likely to cause direct ionization of atoms in molecules?
What is the most radiosensitive phase of the cell cycle?
What is the most radiosensitive phase of the cell cycle?
What is the relationship between cell division rate and radiosensitivity?
What is the relationship between cell division rate and radiosensitivity?
Which type of cells are most at risk from radiation?
Which type of cells are most at risk from radiation?
What type of radiation damage occurs when ionization of atoms on key molecules takes place?
What type of radiation damage occurs when ionization of atoms on key molecules takes place?
What type of radiation is classified as indirectly ionizing?
What type of radiation is classified as indirectly ionizing?
What is the effect of radiation on undifferentiated hematopoietic cells?
What is the effect of radiation on undifferentiated hematopoietic cells?
What is the consequence of DNA damage in germ cells?
What is the consequence of DNA damage in germ cells?
What is the primary function of antioxidants in the cell?
What is the primary function of antioxidants in the cell?
What type of radiation is more likely to cause double-strand breaks in DNA?
What type of radiation is more likely to cause double-strand breaks in DNA?
What is the result of unrepairable DNA damage in somatic cells?
What is the result of unrepairable DNA damage in somatic cells?
What is the effect of increasing radiation exposure on the number of mutations?
What is the effect of increasing radiation exposure on the number of mutations?
What is the repair mechanism for single-strand breaks in DNA?
What is the repair mechanism for single-strand breaks in DNA?
