This is a molecule of DNA
Notice how it is becoming unraveled.
It is an inefficient molecule, in need of a good seamstress.
If you ever feel yourself becoming unraveled, feel free to blame this sensation on your DNA.

• First, they collect some from a mouse, or other handy critter:
  
• Gingerly, because it might bite, or jump into her own body, the technician holds the beaker containing the DNA and stirs it.
  

Notice how she looks a bit annoyed. This is because she thought she'd be cloning her ex-boyfriend today.

• Now, the microbiologist examines the sample under the microscope. Granted, he'd be better off with a more higher powered scope than the one he's using, but any port in a research storm... Actually, he might go after a nip of that sherry when he's done.
  

He will use the information gathered to unravel and re-ravel the DNA, if appropriate.

• After whatever arcane manipulations scientists do, the DNA has been transferred to recipient cells, and is ready to be inserted into whatever critter is handy.

Depending upon what is done, the cells with DNA can be used unaldulterated to clone duplicate copies, just like a Xerox or the DNA can be modified to create cures for any number of diseases, some of which haven't been invented yet.

• Ooops... (Scientists must always, always be careful to watch where they are walking.)

Evolution in (unplanned) action as the spilled DNA goo gets absorbed	or	DNA inclusions in the wrong species

(Clip art courtesy Barry's Clip Art)

Dolly's Cloning Emporium

Something like DNA-bearing critters were cloned while this page was loading.