Cancer Questions?

Question

Individuals with a predisposition for certain cancers
A) are born with one mutated allele for a tumor suppressor gene.
B) will die of cancer.
C) will be more likely to develop cancer than other people.
D) are more strongly affected by mutations to oncogenes; normal individuals aren’t affected unless both oncogene alleles are mutated.

Chemotherapy drugs
A) target rapidly dividing cells.
B) work by blocking synthesis of nucleotides, synthesis of DNA in some cases
C) specifically target cancer cells
D) are highly toxic to the patient
E) can’t block cell division; they can only slow it down.

There may be more than one answer for each question.

Answer 1

1.
a) this is true. I'm thinking of poeple (men or women) who inherit a mutation for BRCA1 or BRCA2.
b) not necessarily (maybe they will die in a car accident)
c) yes
d) I would say not necessarily, because if they have both tumor suppressors genes intact, then they might be able to counteract the mutation in the onocgene.

2.
a) true, especially the older ones
b) true, especially the older ones
c) most do not, but gleevic is one that would
d) true, especially the non-specific drugs
e) some work specifically to block cell division. But I'm sure that some are not 100% effective, and may only slow it down.