Enhancers are transcription factors that bind to regions of dna and increase the rate of transcription of specific genes. silencers, on the other hand, are transcription factors that repress the transcription of specific genes. enhancers and silencers are examples of factors a cell can use to

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.