| More disappointments ahead: humans
are currently estimated to have about three |
| billion nucleotides in total in their
DNA. The rather unglamorous but still surviving |
|
marbled lungfish (Protopterus
aethiopicus)
has 133 billion nucleotides in its DNA. |
 |
| I believe the current record-holder
for most nucleotides is an amoeba |
|
(Polychaos dubium; shown below) - about 670 billion
nucleotides. |
 |
|
Note that besides DNA in chromosomes humans have small
amounts of DNA |
|
in their mitochondria - about 16,570 nucleotides.
How many mitochondria a |
|
human being has is tough to say: red blood cells have zero but
liver and muscle |
|
cells may contains hundred or thousands - up to one fifth of
the cell's volume. |