<P> Humans are diploid organisms, carrying two complete sets of chromosomes: one set of 23 chromosomes from their father and one set of 23 chromosomes from their mother . The two sets combined provide a full complement of 46 chromosomes . This total number of chromosomes is called the chromosome number . When a species has a varying chromosome number, e.g. a diploid and tetraploid form, the chromosome number is called diploid number in the diploid form, and tetraploid number in the tetraploid form . </P> <P> The number of chromosomes found in a single complete set of chromosomes is called the monoploid number (x). The haploid number (n) is unique to gametes (sperm or egg cells), and refers to the total number of chromosomes found in a gamete, which under normal conditions is half the total number of chromosomes in a somatic cell . </P> <P> The haploid number for humans (half of 46) is 23; and the monoploid number equals 46 divided by the ploidy level of 2, which is also 23 . When a human germ cell undergoes meiosis the two sets of 23 chromosomes are split in half to form gametes . After fusion of a male and a female gamete (fertilization) both containing 1 set of 23 chromosomes, the resulting zygote has 46 chromosomes: 2 sets of 23 chromosomes (22 autosomes, and 1 allosome). </P> <P> The common potato (Solanum tuberosum) is an example of a tetraploid organism, carrying four sets of chromosomes . The potato plant inherits two sets of 12 chromosomes from the pollen parent, and two sets of 12 chromosomes from the ovule parent . The four sets combined provide a full complement of 48 chromosomes . The haploid number (half of 48) is 24 . The monoploid number equals the chromosome number divided by the ploidy level: 48 chromosomes in total divided by a ploidy level of 4 equals a monoploid number of 12 . </P>

Where are the haploid cells produced in humans