Because it is the system by which plants and animals grow.When the cell divides a complete copy of the first cell's DNA must be replicated in the new cell.
I don't know of any studies that have been done, but I would seriously doubt that penis size has much, if anything, to with guys who sleep around. I think it would have more to do with their belief system and/or the image they have of themselves. Deb
Does glycolysis require oxygen
Chromosomes contain the DNA of many characteristics that humans may have - gender, hair color, eye color, skin color, etc. Humans have forty-six chromosomes. Chromosomes are often paired together - humans have twenty-three chromosome pairs. 46; 23 from each of my parents. ---- Humans have 22 pairs of somatic chromosomes and 1 pair of sex chromosomes, for a total of 23 pairs. Female have two X sex chromosomes and males have one X and one Y sex chromosome.
Synovial fluid is a thick, stringy fluid found in the cavities of synovial joints. With its egg-like consistency (synovial comes from Latin for "egg"), synovial fluid reduces friction between the articular cartilage and other tissues in joints to lubricate and cushion them during movement.