Each structure on the list is also pictured on the illustration of Cell Structures . The nucleus is the most important structure in cell reproduction because it contains the blueprints which determine the size, shape, job, number of new cells, and repairs for each cell. Inside the nucleus are small units called chromosomes where the blueprint directions are stored. Every human cell contains 46 chromosomes or 23 pairs. Mitosis reproduces cells exactly like the original through replication of the chromosomes.
Mitosis is a continuous process which has been broken down into five stages.
Meiosis is the process where reproductive cells are produced. Meiosis happens in the reproductive parts of the body. The bases and their abbreviations are adenine A, thymine T, guanine G, and cytosine C. DNA is built like a double helix winding around. It is usually found in two long strands which are connected by hydrogen bonds. They are connected so that the same bases are always opposite each other forming a base pair.