The cell division process of prokaryotes, called binary fission, is a less complicated and much quicker process than cell division in eukaryotes.

This type of cell division is called binary fission. Mitosis is unnecessary because there is no nucleus or multiple chromosomes. In bacterial cells, the genome consists of a single, circular DNA chromosome therefore, the process of cell division is simplified. The genomic DNA must be replicated and then allocated into the daughter cells the cytoplasmic contents must also be divided to give both new cells the machinery to sustain life. To achieve the outcome of identical daughter cells, some steps are essential. In unicellular organisms, daughter cells are individuals. In both prokaryotic and eukaryotic cells, the outcome of cell reproduction is a pair of daughter cells that are genetically identical to the parent cell. For unicellular organisms, cell division is the only method to produce new individuals. Prokaryotes such as bacteria propagate by binary fission. Explain how FtsZ and tubulin proteins are examples of homology.Describe the process of binary fission in prokaryotes.These pills inhibit ovulation, implantation and change the cervical mucus to obstruct entry of sperms.By the end of this section, you will be able to: After a gap of 7 days, it has to be repeated in the same pattern. Pills are taken daily for 21 days starting within the first five days of the menstrual cycle. (iii) Oral contraceptives are usually small doses of either progestogens or progestogen–estrogen used in the form of pills. Hence, both Pre-natal sex determination and Female Foeticide has been banned by our Government. Hence, people opt for Pre-natal sex determination followed by Abortion if the sex of the foetus turns out to be Female. Due to several myths and misconceptions, the female child is believed to be a burden on the family in our society, which is far from truth. It has been used widely in the conditions where the pregnancy, if continued might cause harm to the mother or the foetus has some life-threatening genetic disease.īut it is also being misused for aborting the girl child i.e. (ii) The Medical Termination of Pregnancy (MTP) or Abortion is a procedure where the unwanted foetus is surgically removed. Iii) Testes: It secretes the male hormone, testosterone and produces the gametes or sperms in the seminiferous tubules.

It is also responsible for sperm motility. Ii) Seminal vesicle: It stores and produces the majority of the fluid that is responsible for making up the semen. I) Prostate gland: It secretes the prostate fluid which is one of the major components of semen. (i) The role of prostate gland, seminal vesicle and testes in human male reproductive system are as follows. Due to this fact, multicellular organisms need to use a complex way of reproduction. Simple asexual means would not be able to produce a progeny with genetic variation. (ii) Multicellular organisms cannot use simpler way of reproduction because they are not made of a single cell but of multiple cells which are organized into tissues which further forms organs and that further forms organ system so their whole functioning is complex. Then each new organism formed after binary fission receives one copy of DNA. During this process, an organism duplicates its genetic material, and then divides into two parts by the process of cytokinesis. (i) The various steps involved in the process of binary fission with the help of a diagram are:īinary fission takes place in a particular orientation.

Binary fission diagram