individuals are affected when they are homozygous recessive. carriers have not been labeled. referring to the pedigree below, which chromosome is the gene located

Are you asking about a street map usage  if so here is your answer  a street map for a very limited area could simply be a bit map or a .jpg image.  but a more general map would probably store the streets as vectors.  but you shouldn't assume that there is one way to do it

One reason is animal teeth are in an extraordinary structure.another reason is animal teeth are creative