What to apply for? (UCD)

<p>For UCD, what major would be better to apply for?
I'm hoping I'll be accepted into the biological sciences department, but I don't know whether to apply as a regular biological sciences major or a microbio major or even genetics...
From the numbers I have seen, biological sciences is the biggest, but I'm not sure if it is the wisest decision because it is the most popular, and therefore more competitive versus the more specific majors (microbio/genetics/plant)... Or the more specific majors are more selective?
Advice/Info would be amazing :)</p>