Q87 - Genetic Mechanisms Behind Inherited and Sporadic Cancers
Indicate in the answer sheet if each of the following statements about cancers is true or false.
Using the information and data, determine which of the statements are true or which are false.
A. A particular type of colon cancer can be caused by recessive alleles even though its inheritable pattern appears similar to that of a dominant trait.
B. In one patient, normal cells have only one mutated p53 allele but cancer cells have two identical mutated p53 alleles. Then it can be concluded that the second mutated p53 allele is formed by gene conversion.
C. Some cancers have been effectively treated with drugs that cause demethylation. Then it can be concluded that genes causing those cancers are more likely to be oncogenes.
D. Chromosome inversions can produce novel oncogenes.
Question reproduced from IBO 2016, Theoretical Paper B, licensed under CC BY-NC-SA 4.0 - attributed to the International Biology Olympiad. Open the full exam PDF · Community solutions (unofficial)