We have 20 amino acids…

Each of them can be written with ONE letter:

 

A=Alanine

B=…

C=Cysteine

D=Aspartic acid

E=Glutamic acid

F=Phenylalanine

G=Glycine

H=Histidine

I=Isoleucine

J=…

K=Lycine

L=Leucine

M=Methionine

N=Asparagine

O=…

P=Proline

Q=Glutamine

R=Arginine

S=Serine

T=Threonine

U=…

V=Valine

W=Tryptophane

X=…

Y=Tyrosine

Z=…

 

B, J, O, U, X, Z are the 6 letters from the English alphabet which are not been used…

 

We can add this 6 letters to 6 amino acids:

A/B =Alanine

I/J =Isoleucine

N/O =Asparagine

U/V =Valine

W/X =Tryptophane

Y/Z =Tyrosine

 

Now we can write a message-Letter with amino acids…

We can translate it in DNA code…

We can copy it 22 times in each chromosome where the “junk DNA” is…

 

So, we can leave a message to our descendants on the DNA !!!

 

After generations you can track the copies of this message and see if it is readable !!!

 

 

Something similar has been thought of before(using the codons), but it is still interesting as an idea. Not sure proteins wouldn't be too long.

Should note, "Junk DNA" was later found to have uses:

https://en.wikipedia.org/wiki/Noncoding_DNA#Evidence_of_functionality

Within reason, there's nothing saying we can't tack something on though.