Can go astray.
A small defect,
Hard to detect,
Is a disgrace
When out of place.
A missing gene
Can be obscene,
A misfired switch -
A nasty glitch.
If there is not,
There should have been
A special spot,
Where our genes
Could be compared
To a template,
And then repaired,
If they deviate...
There is no hope
For such array --
So we must cope
As well we may...