Using chargaff's rules, which of the following satements about genomic base content is true?
a. senior citizens have higher genomic at content in their brains than 21 year olds.
b. malnutrition has no significant effect on the genomic base pair content of a person's muscles.
c. since gc base pairs are more stable than at, alaskans typically have slightly higher genomic gc contents than floridians.
d. human racial differences are reflected in increased genomic gc contertin native americans as compared to africans.
e. the genomic at content in human lung tissue is equal to the at content in shark gills

Awoman whose sister tested positive for a specific mutation in the brca1 gene, which increases the risk for breast and ovarian cancer, is found not to have that mutation but does have a mutation of unknown significance near the known mutation site. how should this woman be counseled? select one: a. she should be informed that her risk for breast cancer is greater than the general population but not as great as her sister’s risk. b. she should be informed that because she does not have the mutation, her risk for breast cancer is not greater than that of the general population. c. she should be informed of her gene mutation status and be presented with all the available prophylaxis options and reconstruction options. d. she should be informed that she does not have the specific mutation but that because another mutation is present she should be vigilant about screening