Christmas Pic. For Twitchers (&...
Twitching & Birdwatching3 mins ago
No best answer has yet been selected by the.dr. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.Get a high quality copy of your favourite picture. Place it face down on the glass of the world's best quality colour photocopier. Print one copy. Take the copy. Place it on the glass and print one copy. Repeat this process a thousand times then compare the last photocopy with the orginal picture. You'll undoubtably notice errors - perhaps patches which are a different colour, or are distorted, maybe even missing.
That's a reasonably analogy of what happens to your DNA over time as it is reproduced and that's why your body won't last for ever.