In England, peppered moths have two color forms, light and dark Dark is a dominant trait. Until about 1850, the majority of moths in England were light colored. With the beginning of the Industrial Revolution in the late 1800's, the
moth population began to change color. The majority of the moths were dark by the 1920's. How can this be
explained genetically?

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

the principle of segregation describes how pairs of gene variants are separated into reproductive cells. from his data, mendel formulated the principle of segregation. we now know that the segregation of genes occurs during meiosis in eukaryotes, which is a process that produces reproductive cells called gametes.