Podcast
Questions and Answers
Which type of mutagen directly impacts bases resulting in depurination or loss of a purine?
Which type of mutagen directly impacts bases resulting in depurination or loss of a purine?
- Alkylators (correct)
- Gamma radiation
- UV radiation
- Human papillomavirus (HPV)
What is the main cause of the condition xeroderma pigmentosum?
What is the main cause of the condition xeroderma pigmentosum?
- Lack of an enzyme needed to remove thymine dimers from DNA sequences (correct)
- Increased exposure to ultraviolet radiation
- Presence of nitrous acid in the environment
- Mutation due to biological mutagens
Which virus is associated with long-term infections that can lead to cancer in the reproductive tract?
Which virus is associated with long-term infections that can lead to cancer in the reproductive tract?
- Helicobacter pylori
- Human papillomavirus (HPV) (correct)
- Epstein Barr virus
- Hepatitis B virus
What effect does nitrosoguanidine have on DNA?
What effect does nitrosoguanidine have on DNA?
How do mutagens primarily create damage to DNA?
How do mutagens primarily create damage to DNA?
During which stage of the cell cycle does base excision repair remove a damaged base from the DNA?
During which stage of the cell cycle does base excision repair remove a damaged base from the DNA?
Which repair mechanism occurs in both the G1 and G2 stages of the cell cycle to delete lesions on nucleotide sequences in DNA?
Which repair mechanism occurs in both the G1 and G2 stages of the cell cycle to delete lesions on nucleotide sequences in DNA?
What is the primary role of mismatch repair in DNA replication?
What is the primary role of mismatch repair in DNA replication?
Which of the following is NOT an example of a physical mutagen?
Which of the following is NOT an example of a physical mutagen?
What type of biological agents are capable of initiating changes in an individual's DNA?
What type of biological agents are capable of initiating changes in an individual's DNA?
What is the primary effect of alkylation in DNA?
What is the primary effect of alkylation in DNA?
Which of the following mutations can have a beneficial effect on human health?
Which of the following mutations can have a beneficial effect on human health?
What is the primary role of mutations in the process of evolution?
What is the primary role of mutations in the process of evolution?
Which of the following is NOT a specific action of mutagens on DNA?
Which of the following is NOT a specific action of mutagens on DNA?
What is the effect of coordination by heavy metal ions on DNA?
What is the effect of coordination by heavy metal ions on DNA?
