Which of the following is/are risk factors of cancer?
A. Exposure to toxins/chemicals
B. Exposure to radiation
C. Exposure to excessive UV light (sunlight)
D. All of these are risk factors
Select your answer:
Topics:
Enzymes and Their Functions Muscle Origin, Insertion, and Function Gastroenterology Immunity and Vaccines Circulatory and Lymphatic System Bio Cells Brain, Neurons and The Nervous System Musculoskeletal System Responses to Exercises Circulatory, Artery, Vein - basics Pathogens Body Fluids Safety and First Aid Multicellular Organisms: Organisation Plasmid Fad DietsOther quiz:
Protein Synthesis Enzymes › ViewWhich enzyme adds nucleotides in a 5′ to 3′ direction during DNA replication?
A. DNA Polymerase III
B. Helicase
C. Topoisomerase
D. Ligase
Microbiology › View
A patient visits your clinic often with recurrent respiratory infections. Based upon their medical history, it appears they have been an active smoker for over 40 years. Select the statement that most accurately reflects how this information may reveal why the patient is highly susceptible to respiratory pathogens.
A. Smoking decreases the formation and effectiveness of complement proteins.
B. Smoking directly inhibits B- and T-cell action.
C. Smoking decreases the activity of neutrophils.
D. Smoking can paralyze the ciliary escalator.