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.
Ex: Human cells like skin, lung etc. are diploid that is they have two sets of chromosomes (23 from each parent) but Gemetic cells like egg and sperm are haploid. Haploid: Haploid are the cells which contain a single set of chromosomes in genome (chromosomes). Ex: Gemetic cells etc. Ploidy can be triploidy (3 sets), tetraploidy (4 sets), pentaploidy (5 sets) and hexaploidy (6 sets). Like comoom wheat species are hexaploid i.e. they have 5 sets of chromosome in their genomes.