What is the definition of reproductive cloning?

Reproductive cloning is specifically defined as the process of creating a new organism that is genetically identical, or a clone, to another organism. This cloning process typically involves techniques such as somatic cell nuclear transfer, where the nucleus of a somatic cell is transferred into an egg cell that has had its own nucleus removed, eventually leading to the development of an embryo that is a genetic copy of the original organism.

The other options describe different biological processes. For example, creating an embryo from the genetic material of two parents refers to traditional sexual reproduction and the natural combination of genes. While using stem cells to develop new organs pertains to regenerative medicine and tissue engineering, which does not involve the cloning of whole organisms. The idea of combining genetic material from multiple sources is more aligned with genetic engineering and hybridization rather than the creation of a clone. Hence, option B accurately captures the essence of reproductive cloning by highlighting its focus on producing an organism that is a genetic duplicate of another.