A sarcomere (Greek sarx flesh, meros part) is the basic unit of striated muscle tissue. Skeletal muscles are composed of tubular muscle cells (myocytes called muscle fibers) which are formed in a process known as myogenesis.Muscle fibers are composed of tubular myofibrils.Myofibrils are composed of repeating sections of sarcomeres, which appear under the microscope as dark and light bands. Sarcomeres are composed of long, fibrous proteins as filaments that slide past each other when a muscle contracts or relaxes.uscle fibers are composed of tubular myofibrils. Myofibrils are composed of repeating sections of sarcomeres, which appear under the microscope as dark and light bands. Sarcomeres are composed of long, fibrous proteins as filaments that slide past each other when a muscle contracts or relaxes.
Binary fission. Binary fission (division in half) is a kind of asexual reproduction. It is the most common form of reproduction in prokaryotes and occurs in some single-celled eukaryotes like Amoeba and Paramecium. In binary fission , the fully grown parent cell splits into two halves , producing two new cells. After replicating its genetic material, the cell divides into two nearly equal sized daughter cells. The genetic material is also equally split.
Prokaryotes can reproduce by either binary fission or conjugation. Binary Fission is asexual reproduction where the cell splits in two, and conjugation works through the exchange in DNA between two cells. binary fusion in asexual process known as binary fission binary fission Prokaryotes use binary fission or conjugation to reproduce asexually.