Grades from transfer university, impact on graduate admissions? I am wondering about what the impact of a poor grade that is taken as transfer credit would be. 

I am taking a core EECS (Logic Gates) class at a different university for some transfer credit because I am working full-time this school year (as a co-op). Since my university required only a C for transfer, I was not planning to put much effort into the class because I'd be busy with work. 

However, I recently found that some universities like Berkeley require transcripts from all schools attended. In this case, I'm sure that it'd look bad, but I am wondering how bad it would be?
For graduate admissions, transfer credit is treated the same way as regular credit.  Most universities will want all your undergraduate transcripts for graduate admissions.