Up until now genetic engineering and cloning has been used to clone plants, unicellular organisms, amphibians and simple mammals. ... This method, called selective breeding, is still used today with plants and animals in order to increase food production. Corn plants are selectively bred in order to produce a larger tastier kernel. ... However, as cells differentiate into different tissues and organs, they only keep the genetic material needed to reproduce that organ. ... Dolly the sheep was successfully cloned by transferring the nucleus of a non-reproductive cell, a mammary cell, into an unf...

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I am in favor on cloning plants; however, I am against on cloning animals and humans. Cloning plants is good because we could win the fight against global hunger, but the bad news is that we don't know if cloned food could damage our health. ... Furthermore, people are concern because scientists also want to clone headless human bodies as a future source of organs. ... I also don't agree with Professor Silver because he said, ""nothing is wrong, philosophically or rationally,"" with producing headless humans for organs harvesting he wants to convince a skeptical public that it is per...

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