When he was just 22 years old, Darwin went on a scientific
expedition aboard a ship called the

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.

answer; /// the shaft of the hair consists of dead cells;