If you want to spend 2 or 3 days on the project, use this:

 

 

Group 1

T A C C G A A C A A C A

 

Group 4

T A C T T T G T T C C A

Group 2

T A C A C A C C A T A A

 

Group 5

T A C T A A A A A C G A

Group 3

T A C C C A A C A A A A

 

Group 6

T A C C C C T A A T T T

 

 

It is easier to complete this project in one block:

 

Group 1

A C A G C A

 

Group 4

G T T C C A

Group 2

C C G T A A

 

Group 5

A A A C G C

Group 3

A C A T A G

 

Group 6

G A A T C T