Q2.15. which of the following is required for the process of evolution by natural selection to occur?

there must be a sudden change in some aspect of the population's environment.

in the population, there must be one or more traits for which individuals differ.

there must be a predator species that preys on individuals in the population.

the population must have recently been introduced to the region.

In sweet pea, gene c is responsible for color production and gene p is responsible for the purple color pigment. both of them are located on two different loci on different chromosomes. the flowers will be purple only when the plant has the genotypes as c_p_. no color will be produced with genotypes: ccpp, ccpp, ccpp, ccpp. thus, gene c controls the expression of gene p. what pattern of inheritance is exhibited here? a. pleiotropy b. epistasis c. multiple alleles