Why isn microinjection as precise as nuclear transfer?
With microinjection, you’re depending upon genetic incorporation during cell division. Sometimes that happens, sometimes it doesn’t; sometimes it happens very late in the cell division process. And you don’t know what type of animal you’re going to get, a non-transgenic, a transgenic, or a partly transgenic animal. You don’t know that until the animal is born. Whereas with nuclear transfer, because that material is already incorporated in the cell line and you know that genetic profile, you know the genetic profile of the animal before the animal is born. What is the difference between a transgenic and a cloned animal? A transgenic animal simply has a trangene of interest within its genomic makeup. A cloned animal is developed through nuclear transfer, and typically has a common genetic profile with another animals. How long does it take for a goat to produce milk? Well, it takes them about seven months to get to sexual maturity, at which point you can get them pregnant again. Now you
