Scientists have recently modified the bacteria that cause tooth decay by inserting a fragment of DNA into the bacteria's DNA
that prevents it from producing lactic acid. What is the new DNA called?
foreign DNA
restriction DNA
recombinant DNA
transgenic DNA

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

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

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?