Quick Guide: Cloning
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Introduction

Embryo cloning

Reproductive cloning

Therapeutic cloning

Benefits

Concerns

Therapeutic cloning
Stem cells can develop into any other type of cell in the body

Therapeutic cloning follows the same initial stages as reproductive cloning, but once the copy pre-embryo has been created its stem cells are removed.

Stem cells can grow into any type of cell, so researchers hope to harvest them and use them to replace ones that have become worn out or damaged.

This could represent a powerful and versatile tool for fighting disease.

But the pre-embryo, which some consider to already be a human with a right to life, is destroyed in the process.