It's fairly clear that you've never done a science experiment in your life. Skin colour is most definitely an evolutionary mutation. If you knew anything about evolution you'd know that humans evolve BY mutating, which is also called 'changing proteins and creating gene variations'. That's why it can be 'bred out'. When a white person with the white person gene mates with a black person with the black person gene you get a baby with a mixture of the two genes.
The reason the white person gene evolved is because humans spread out and lived in colder climates with less sunshine.
The black person gene causes the skin to create lots of melanin and the white person gene stifles melanin production, thus the child's skin is lighter in colour. If that child breeds with a white person the white person gene becomes dominant. But it's never gone entirely. That's why white can people sometimes have black kids. People did not evolve skin color either, that's easily dispelled by the fact people of various skin tones, even white people lived in Africa in its ancient history. Humanity is Humanity, but indeed it is diverse. Wherefore call ye this mutation?
Bacteria are extremely simply life forms. Please stop going to answersingenesis where they talk about the 'dog kind'.
This is where you are not up to date and flawed here, you think skin color is a mutation. It is not. More importantly genes do not evolve. All genes are interestingly all ready present but in individuals they have Genetic Variance depending which genes are turned on or off. Genes can even be caused to turn on and off by environmental factors, which is the part Darwin got right (and it happens way faster than he imagine).
How do we know genes didn't evolve? Simple, there's certain genes people all have but that have never been activated or they can't be activated unless under circumstance. For instance, every human has always has the cancer genes. Some people are pre-disposed to get cancer genetically due to their parents. However, for all people there's certain environmental factors that have to be met to activate the gene. For instance smoking a cigarette may activate the gene causing lung cancer, for certain people you will get other cancers given different events or environmental factors instead.
At the heart of Darwin's errors is the presumption that there is a one-celled amoeba that evolve from nothing and made all life which is why he needed, for his time, millions of years, but nowadays in their mad quest to find the fiction we're now revised up to 4.5 billions years for life to "Evolve" itself from nothing and then turn into even more complex lifeforms which somehow gives us all life today.
Creationism actually has evidence to back it up even if one wants to be a hard-hearted secularist and look past the Creator (though of course; how can one ignore the Creator of the Creation, whom is the rightful owner.) Thanks to genetics itself we know that at some point many Progenitor Creations were created, spread, the earth was cataclysmically destroyed by a lot of water and chaos, certain creatures and the Man Kind survived and waxed greatly across the face of the earth originating from Three distinct genetic families, empires rose and fell, animals have been going extinct throughout known human history (mostly by humans, go figure), today environmentally and humanistically the corruption is very far spread and environmentally since the industrial revolution this has been the biggest mass extinction of life on earth since the Flood that there is any evidence that has not been destroyed in the past.
Thank God we at least know Jesus was born and is the Christ.