Should colleges conduct an "Evolution Litmus Test"?

I was reading this blog post which argues in favour of an “Evolution Litmus Test” where those who intend to major in Biology (or related fields) should only be admitted if they believe in evolution.

Here is an excerpt:

“If you are getting a degree in something biology-related, you should understand and accept evolution. Hell, I know Biology students (mostly molecular or pre-med people) who don’t accept evolution, so it’s not a matter of curriculum*. But to know that we’re giving degrees to people who fail to understand – no, outright deny a basic tenet of biology is shameful.
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Do not accept people into your school or Masters/PhD program unless they accept evolution. I don’t care how you do it – a written test, an essay question on the application, a simple check box to weed out the honest, asking pointed questions during interviews, sending grad student spies to mingle and get the truth out… But figure out what people deny basic science before you turn them into scientists. A friend shared with me a story about a fellow grad school interviewee at a very prestigious university who was a unabashedly proud young earth creationist around the other prospective students (but not current ones or professors) – do not let this ignorance infiltrate your program.

I know people are going to claim I’m just putting an “atheist requirement” on studying biology, but I am not. There are many many biologists who are religious but still accept evolution. I have friends here at Purdue who go to church weekly, are in religious clubs, and will still laugh at Intelligent Design for it’s anti-science lunacy. This is just a scientific standard. If you don’t believe in a fundamental of the field, you should not be able to claim some sort of expertise in it. It’s as bad as graduating in History with a focus on WWII and believing the Holocaust was a hoax. It proves you do not understand the topic, and it is embarrassing to the school.”

What are your thoughts? Should Biology majors be denied college admissions because they believe in intelligent design?