Normally when the Muco lays an egg, it lays an exact copy of the genome listed in the PRAY in the line "Genetics File", but if you listed both "Mother Genetics File" and "Father Genetics File", it would cross the two together with a little bit of mutation chance, creating a not entirely stock-standard gen 1 creature.
However, on CDN the explanation of this also claimed that if you listed a "Mother Genetics File"(without a "Father Genetics File" ), you'd get a gen 1 creature from that one genome with a few mutations. Looking at the actual Muco file, this didn't happen(it would load the genome normally without doing anything to it), so I added it in. On a technical level, it crosses the genome with itself, but it'd have the same effect as the genome being it's base one with a bit of mutations.
Just place it in your bootstrap folder. It should be fully compatible with agents like nornbinary or advanced muco(Though in the case of nornbinary, if you use the agent version you will have to ject this cos file for it to take effect afterward)
Thanks to CosmicSynthetics for having/finding/linking the article in question