An allele is an alternative form of a gene that is located at a specific position on a specific
chromosome. We usually have two alleles different, traits can mask recessive traits.

2. page 1: schlosser describes "just another gorgeous rocky mountain vista. and yet cheyenne mountain is hardly pristine." why do you think schlosser describes the beautiful cheyenne mountain scene in detail before describing the military installation that lies inside?

How did the industrial revolution shape the beliefs of the romantics

How does the author introduces his idea of fish depletion in the first few pages of world without fish?