[Chords]
D5 xx023x
D5* xx003x
[Intro]
e|------------15-14-15-|-12---15------15------|--------------------15-|-12---------14----------|
B|-------0-------------|---------15------13---|-12--------12-13-15----|---------------15-------|
G|-----0---------------|----------------------|--------14-------------|------12-14-------14-12-|
D|---0-----------------|----------------------|-----------------------|------------------------|
A|---------------------|----------------------|-----------------------|------------------------|
E|-3-------------------|----------------------|-----------------------|------------------------|
[Verse]
G D/F# Em
There was a time when to amplify DNA,
Am7 G/B D/F#
You had to grow tons and tons of tiny cells.
Bm Am7 G/B D/F#
Then along came a guy named Dr. Kary Mullis,
Am7 G/B D/F#
Said you can amplify in vitro just as well.
G D/F# Em
Just mix your template with a buffer and some primers,
Am7 G/B D/F#
Nucleotides and polymerases, too.
Bm Am7 G/B D/F#
Denaturing, annealing, and extending.
Am7 G/B D/F#
Well it’s amazing what heating and cooling and heating will do.
[Chorus]
D5* D5 G D/F# Em
P C R, when you need to detect mutations.
Am7 G/B D/F#
PCR, when you need to recombine.
Bm Am7 G/B D/F#
PCR, when you need to find out who the daddy is.
Am7 G/B D/F#
PCR, when you need to solve a crime.