The uniqueness of individual offspring for many animals and plants is the result of a process called mitosis meiosis

The uniqueness of individual offspring for many animals and plants is the result of a process called Meiosis.

During meiosis , the number of chromosomes in parent cell are reduced by half and produces four gamete cells.

Later on, these chromosomes are mixed into the new offspring, causing it carried out some characteristic from its parents and became a new unique individual.