Sunday, December 4, 2011

Thankful Day #29

Thankful Day #29: I'm thankful for telomeres. These repetitious ends on our chromosomes get shorter and shorter with each generation of cell division. When the telomeres run short on genetic material, the cell either dies or becomes static. Why be thankful about this process? Without it, growth and development would be impossible, and every cell would be nearly immortal. Death is a necessary part of normal life.

No comments:

Post a Comment