) After decades of work a scientist isolated a small amount of attractase, an enzyme producing a powerful human pheromone. To produce attractase for his personal use in large quantities, he obtained a complete genomic clone of the attractase gene, connected it to a strong bacterial promoter on an expression plasmid into E. coli cells. He was devastated to find out that no attractase was produced in the cells. What is a likely explanation for the failure

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.