Cones provide colour vision while rods cells do not produce colour vision. Rods provide the vision in the dull light (darkness or night), whereas cones are known to give the vision during the day or bright light; Rod cells are more sensitive to light than cone cells and both do have visual pigments with the rod cells possessing rhodopsin and the cone cells having photo-opsins.
Most cells in the body are diploids, germ line diploid cells will undergo meiosis to produce gametes. Fertilization following, the gametophyte phase is haploid and the part of the life cycle in which gametes are produced by mitosis of haploid cells.