Evolution is not only the development of new species from older ones, as most people assume. It is also the minor changes within a species from generation to generation over long periods of time that can result in the gradual transition to new species. Choose all of the statements which are true concerning the Hardy-Weinberg Principle. allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences evolution should be expected in all populations virtually all of the time mutations and natural selection cannot occur for evolution to take place p2 + 2pq + q2 = 1 In order for evolution to occur, mating must be random