MEIOSIS

Meiosis is one of the cell divisions happening in our body. Meiosis happens only in germ cells or the gametes.It has many difference on mitosis like it produces haploid cells, and it is not a cycle. It is quite similar to mitosis the only difference is the prophase I. Prophase I has 5 sub-stages namely leptotene, zygotene, pachytene, diplotene, and diakinesis.
In leptotene individual chromosomes begin to condense into long strands within the nucleus. In zygotene individual chromosomes begin to condense into long strands within the nucleus.
In pachytene the synapsis of homologous chromosomes takes place. In diplotene chiasmata the regions where crossing-over occurred. In diakinesis four parts of the tetrads are actually visible. metaphase I, anaphase I, telophase I and meiosis II are the similar with mitosis.

MITOSIS/ CELL DIVISION

MTOSIS IS one of the cell division the other one is meiosis which is majorly in reproductive cells. Cell division starts with interphase, interphase has 3 stages namely G1, S and G2. After interphase, mitosis starts with early prophase where chromosomes starts to thicken and form a duplicated chromosome. Late phrophase is where th centrioles go far away from each other to go to opposite pole, this is also where the chromosomes form ''X'' shape. Metaphase is where the spindle fibers from the centriole hold the centromere of aligned chromosomes. Anaphase is where the opposite poles get the half of the chromosome. Then telophase happens and form cleavage furrow and the daughter cells has its own nucleus.

THE CELL

The cell has 3 main parts the cell membrane, nucleus and cytoplasm. Nucleus is the brain of the cell since it contains all the genetic materials like the DNA and RNA. It has other parts like nucleolus, chromatin, nucleopore and nuclear membrane. Cell membrane is the one who protects the cell because it is semipermeable which means it is selective and don't just let anything in. Cytoplasm is further divided into 2 the cytosol and organelles. Cytosol is the gel like substance where the organelles float or can be found. Organelles are the one responsible for cell activities examples of organelles are ribosomes, rough endoplasmic reticulum, smooth endoplasmic reticulum, golgi apparatus, cytoskeleton, mitochondrion, vacuole, lysosome and centrioles. The picture in the right is an example of nucleus.