She didn't say that.
"I don’t buy it because I don’t believe in evolution. I don’t believe in that type of so-called science. I don’t believe in evolution, I believe in God."
That was her quote responding to a question from Bannon on his podcast when he asked about her stance on gain-of-function research. Which is an odd response but whatever.
So like everything on Twitter, she was taken out of context. Which was not really not needed since her comments were kind of out there on their own.