genetic marker a gene having alleles that are all expressed in the phenotype, that is, they are codominant, and which can be used to study inheritance. The various blood group systems and serum or red blood cell proteins easily detected by electrophoresis or immunodiffusion are commonly used markers.
Snowshoe has several commercial areas, with the most prominent being The Village at Snowshoe, located at the summit of the mountain (rather than at its base).
Lake Tahoe is truly best seen in the snow! Normally during the Winter, Lake Tahoe has SNOW. NOT a good time to go canoeing or river rafting. You might check out Truckee for rooming, it's at the North end of the lake. I would think that Spring or early Summer would be a good time for hiking, canoeing and river rafting. It's really beautiful at that time of year.