ABOUT THIS SITE SUBMIT A QUESTION FEEDBACK ASK A BIOLOGIST FRONT PAGE BACK YARD EXPERIMENTS ARTICLES AND PROFILES BIOLOGY WEB LINKS GALLERY by Faye Farmer
illustration by Sabine Deviche

Words to know before you read


  • Differentiation- When a cell chooses a particular genetically determined path that causes it to perform only a few specialized tasks.
  • DNA- Short for deoxyribonucleic acid, the genetic information that is passed from parent to child, which determines the properties of all your cells.
  • Egg- A female gamete, which keeps all the parts of a cell after fusing with a sperm.
  • Ewe- Pronounced "you," a young sheep.
  • Gamete- Specialized cells found in your reproductive organs that have half the amount of DNA of somatic cells. These cells fuse to make a fertilized egg.
  • Gene- A subunit of DNA, where specific information for one trait is kept.
  • Organism- A living thing that can be small like bacteria to large like an elephant.
  • Nucleus- Where DNA stays in the cell, plural is nuclei.
  • Somatic Cells- The cells in your body, except for gametes. Soma is Latin for body.
  • Sperm- A male gamete, which only transfers its DNA to the egg.
Images in this article are linked to more information.

Have you ever sat down to do your homework, looked out of the window and said, "There should be two of me. One to stay here and do my homework and one to play out there." Think of the possibilities! What trouble could you get into if there were two of you? How much fun could you have? If only you had your very own clone! Or maybe you do have your very own clone...

We do have clones living among us today. These clones are called identical twins. A clone is an organism, plant or animal that has the exact same genetic blueprint as another organism. If we have clones everywhere around us, what's the big deal about cloning?

Send in the Clones What's a Clone?

Cloning that is covered by the news today is special because we can manipulate cells in such a specific way that we can create clones outside of the body. We are also able to choose which genetic blueprint we want to insert into the cell. The technology came about by studying cells from plants and animals. Scientists discovered what cells require to grow and divide outside the body, what cells need to become specialized cells, and how to use technology to replace the genetic material of a cell.

Nuclear Transfers Cell Differentiation

The first mammal to be cloned was a sheep named "Dolly." Dolly has the genetic material of a white faced sheep, but her mother was a black faced sheep. Since then, several other animals have been cloned and maybe even some people. The Story of Dolly

This technology is being used more and more by scientists. Cloning is still not an exact science and we do not really know the overall effects of cloning on the organism's health. These issues create some important ethical questions about how we use this technology today and how we will use it in the future. Clone-clusion

Quiz yourself on the information you just read in this article!  

 

 

Have some more fun with our puzzles based on this article or another article at Ask a Biologist.


  

Research Page


ABOUT THIS SITE | SUBMIT A QUESTION | FEEDBACK | FRONT PAGE
EXPERIMENTS AND STUFF | ARTICLES AND PROFILES | WEB LINKS | GALLERY