Chloe’s mother wants to have another child. however, she is concerned that a second child might also have cf, so she encourages chloe’s stepfather to be tested. tests reveal that he does not carry the cf gene. what is the chance that a second child born to chloe’s mother and stepfather will have cf?

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.