Here is the full list of all 12 Mitosis achievements.
Grow a huge population of cells.
Wipe out your population as fast as you can!
Grow aggressive cells with spikes.
Grow a population with at least three high evolved genes.
Many cells have to die. No matter how long it takes.
Grow many cells in short time.
Keep a tiny population alive.
Grow a heat resistant population.
Breed a lot of cold resistant cells.
Grow cells with many limbs.
Your cells have to perform mitosis many many times.
Let your cells fight against each other.