You are looking at a slide using your microscope and see many things moving about. you notice a very rigid structure outlining the cell. you like to have as many facts as possible to back up any claims you make, specially in science. what else would you to be sure what type of cell you are seeing? question 4 options: lysosomes chloroplasts mitochondria cell membrane

As a small change in a person's dna can cause a genetic disorder

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

18. which statement about cancer is true?