How hard is it to switch from a biology major to a different biology major?

<p>Alright, so I got admitted to UCLA's Letters and Sciences majoring in 'Biology', but now I want to change either to 'Microbiology, Immunology, and Molecular Genetics' or 'Molecular, Cell, and Developmental Biology'. What's the level of difficulty into switiching to either of these?</p>

<p>Since they’re both in the College of Letters and Sciences, it’s easy as hell. If you’ve just been admitted, you can change during orientation by simply telling your counselor, “Hey, I wanna switch from Bio to MIMG.” Takes like 5 seconds.</p>

<p>If you’re a student already, then just stop by your counselor’s office or go to the department counselors and tell them you wanna switch. Super easy.</p>

<p>Thank you very much!!! ^_^</p>