Diploid (meaning double in Greek) cells have two copies (homologs) of each chromosome (both sex- and non-sex determining chromosomes), usually one from the mother and one from the father. Most somatic cells (body cells) of higher organisms are diploid or polyploid (three or more copies of each chromosome, often found in plants), whereas their reproductive cells are usually haploid (they have only one copy of each chromosome). During meiosis, germ cell precursors have their number of chromosomes halved by randomly "choosing" one homolog, resulting in haploid germ cells (sex cells or gametes).
When reproducing sexually, gametes of both parents will generally merge to form a diploid cell, the zygote, with unique genetic properties, which then develops into the next developmental stages.
A diploid can have large flowers, large plants and great flower substance, although if the same diploidplant is converted to a tetraploid, the plants' caracteristics will be enhanced.
SEEDS when pollinated with another diploid and a tetraploid will only form seeds when pollinated with another tetraploid.
The seeds of a diploid will produce diploidplants and the seeds of a tetraploid will produce tetraploid plants.
In humans, most cells are diploid (containing one set of chromosomes from each parent), though sex cells (sperm and oocytes) are haploid.
Diploid cells (meaning double in Greek) have two copies (homologs) of each chromosome (both sex- and non-sex determining chromosomes), usually one from the mother and one from the father.
Even in diploid organisms many somatic cells are polyploid due to a process called endoreduplication where duplication of the genome occurs without mitosis (cell division).
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