Cloning Of all the terms coined by scientists which have entered popular vocabulary, 'clone' has become one of the more emotive. Strictly speaking a clone refers to one or more offspring derived from a single ancestor, whose genetic composition is identical to that of the ancestor. No sex is involved in the production of clones, and since sex is the normal means by which new genetic material is introduced during procreation, clones have no choice …
showed first 75 words of 944 total

showed last 75 words of 944 total
…wine, the supply of rubber and the fruit harvest as it is to the variety of an English country garden. Furthermore, natural cloning is not confined to plants: microbes and some insects frequently propagate themselves by producing genetically identical offspring without recourse to sex. The toothless mammal, the armadillo, gives birth not to identical twins but to genetically identical octuplets: every litter a batch of eight clones. There is nothing a priori unnatural about cloning.