Question about viewing Routes in BaseCamp

I received my replacement 1490 LTM and it will now upload routes form BC without crashing. I uploaded 4 routes from base camp. When I clicked on the Nuvi in BC I could see all 4 routes. I ejected the Nuvi and imported the routes into the Nuvi. I deleted three of the routes and left one. When I connected the Nuvi to BC it only showed the one route I left active on the Nuvi and I think this is as it should be. When I looked at the route, it was very vector like in that it had straight lines and did not follow the road but every turn was correct. After a few miles, it seemed to follow the road as the original route drawn in BaseCamp. When I select an imported route on the Nuvi before any routes have been moved from BC is this the route the Nuvi will use when navigating in the vehicle?

Thanks