We hear a lot about stem cell research in the news. what are stem cells, and why might a person with damage to the brain or spinal cord be very interested in the advancement of this field? what are some of the ethical issues related to stem cell research? do some research into stem cell research, then share the resources you used in your discussion post and your thoughts about it

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions,because prokaryotes don't have nuclei.

Describe the two types of vascular tissue

One of the reasons that stars are so large is because