Which of the following is not the type of binary fission?

Binary fission is a type of asexual reproduction in which a single organism divides into two equal parts, each of which can grow into a fully mature individual. It is a common mode of reproduction in unicellular organisms such as bacteria and some protists.

Out of the given options, the answer is "Obligate Binary Fission." Obligate binary fission is not a type of binary fission. "Obligate" means "compulsory" or "necessary," and binary fission is the only means of reproduction for some organisms. Therefore, the term "obligate binary fission" is redundant and not used in biological contexts.

Simple binary fission is a type of binary fission in which a single organism divides into two equal parts along its long axis. Longitudinal binary fission is a type of binary fission in which the division occurs along the longitudinal axis of the cell. Transverse binary fission is a type of binary fission in which the division occurs across the width of the cell.

Therefore, the correct answer is Obligate Binary Fission.