Why don’t people eat things with very high levels of cellulose?

people cannot digest cellulose.
foods high in cellulose are expensive.
foods with high levels of cellulose are difficult to find.
cellulose is only food for cells.

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