When a metatarsal bone, a bone connecting the toe to the rest of the foot, is involved, pain will be felt in the upper foot. Metatarsal Bone Spurs-A bone spur in one of the metatarsals often coincides with a presence of arthritis in the area, and both the spur and the arthritis may require treatment.
Haploid organisms such as fungi, yeast, and algae can have complex cell cycles, in which the choice between sexual or asexual reproduction is fluid, and often influenced by the environment. Some organisms, in addition to their usual haploid state, can also exist as diploid for a short time, allowing genetic recombination to occur.
When the haploid cells from the parent donors come together and are fertilized, the offspring has a complete set of chromosomes and becomes a diploid cell. A haploid cell with have a haploid number, which is the number of chromosomes found within the nucleus that create one set. In humans, the haploid cells have 23 chromosomes, versus the 46 in the diploid cells. There is a difference between haploid and monoploid cells. Haploid cells have one complete set of chromosomes, whereas the term monoploid refers to the number of unique chromosomes in a biological cell.