what is a good knowledge in patterns, data structures and so on? [on hold]

I would like to apply for a position and among 7-8 aspects, there are two I'm not sure how to answer:

• Very good knowledge in algorithms and data structures
• Good knowledge of modern programming concepts, design patterns and templates

They are seeking for a scientist, not a (pure) programmer but I'm not sure if they wanna' have both in one.. Can someone please tell me or explain what is explicitly meant by this?