When gene frequencies stay relatively constant, Hardy-Weinberg equilibrium occurs. HW equilibrium occurs in large populations with random mating, with no migration, mutation, or natural selection. In this case, the proportion of dominant homozygous equals the square of the frequency of the dominant allele (p2), the proportion of recessive homozygous equals the square of the frequency of the recessive allele (q2<span>) and the proportion of heterozygotes equals 2pq.</span>
It eliminates certain genetic diseases or bad traits for the flock.
DNA is verry important to life. It is the instructions or the blueprints of how to make (and makes up) the organism. Without it life as we know it is just not possible.
Water-borne diseases, including cholera, typhoid, and dysentery, are caused by drinking water containing infectious viruses or bacteria, which often come from human or animal waste. Water-washed diseases, such as skin and eye infections, are caused by lack of clean water for washing.
Phagocytes are the type of cells that 'devour' foreign cells in order to protect the body using phagocytosis.
