Which statement describes a reason why stem cell research is important? a. it allows scientists to mix the genes of different organisms to produce desired traits. b. it allows scientists to put healthy genes in cancer cells. c. it investigates the use of undifferentiated cells to cure disease. d. all of the above

All of the above.

Explanation:

The stem research are important as the culture of stem cells can be used to treat the different disease. The new tissue or organ can be prepared in the laboratory by the stem cell.

The stem cell research can also produced the genetically modified stem cell that contains the mixing of stem cell of different organism. Cancer cells can be treated by stem cell research as the healthy genes can be replaced in place of cancer cells. The undifferentiated mass of stem cells can also be used to treat the disease.

Thus, the correct answer is option (D).

answer; i believe that the correct answer is(d) nondisjunction during meiosis;