stem cells are undifferentiated cells. they have the potential to become any type of cell in the body. they…

stem cells are undifferentiated cells. they have the potential to become any type of cell in the body. they are already used in treating many diseases, and scientists hope to learn how to use them to regenerate damaged or destroyed parts of the body. which of the following sources of stem cells presents the greatest ethical problems or controversies? a. stem cells can be harvested by destroying human embryos. b. stem cells can be created from many types of cells in adults, such as skin cells. c. stem cells can be harvested from umbilical cord blood after the birth of a baby. d. stem cells can be harvested from certain tissues and organs in adults, such as bone marrow.

stem cells are undifferentiated cells. they have the potential to become any type of cell in the body. they are already used in treating many diseases, and scientists hope to learn how to use them to regenerate damaged or destroyed parts of the body. which of the following sources of stem cells presents the greatest ethical problems or controversies? a. stem cells can be harvested by destroying human embryos. b. stem cells can be created from many types of cells in adults, such as skin cells. c. stem cells can be harvested from umbilical cord blood after the birth of a baby. d. stem cells can be harvested from certain tissues and organs in adults, such as bone marrow.

Answer

Brief Explanations:

Harvesting stem - cells by destroying human embryos raises ethical issues as it involves the destruction of a potential human life. Options B, C, and D do not involve such controversial destruction of early - stage human life.

Answer:

A. Stem cells can be harvested by destroying human embryos.