Explanation:
Mitosis is the nuclear division followed by cytokinesis, which leads to the production of two daughter cells.
<u>It includes the following phases -
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1. Interphase - In this process the Cell actively metabolizes and prepare itself for the process of mitosis and the Chromosomes are not clearly discerned .
2. Prophase - In this phase , the Chromatin gets to condense and can be visualized under a light microscope and Nucleolus gets disappeared , Centrioles begins to move to opposite ends of the cell .
3. Metaphase - In this phase the Spindle fibers gets align the chromosome along the middle of the nucleus of the cell thereby creating a metaphase plate .
4. Anaphase - In this phase , the chromosomes which got paired up gets separate at the kinetochores and move to the opposite directions of the cell , the Spindle microtubules and physical interaction among polar microtubules is responsible for kinetochore movement.
5. Telophase - In this phase , the Chromatids completely move to the opposite poles of the cell , and new membranes start forming around the daughter nuclei and the Chromosomes disperse and become invisible. Cytokinesis starts.
6. Cytokinesis - In this final process the Actin fiber ring around the center of the cell contracts and create the cell into two daughter cells.
Explanation:
Most of the benefits of exercise and activity diminish within two weeks of substantially decreased physical activity
Answer:
A brain tumour is a growth of cells in the brain that multiplies in an abnormal, uncontrollable way.
D, calcium helps the bones
The risk of HIV infection is increased in the group that engages in intimate activity.
- Human immunodeficiency virus, or HIV, affects immune system cells and weakens your body's defences against illness and infection. The risk of HIV infection is increased in the group that engages in intimate activity.
- HIV testing comes in three different forms: nucleic acid tests, antigen/antibody tests, and antibody tests (NAT). When you are exposed to viruses like HIV, your immune system produces antibodies. Antigens are alien compounds that trigger the immune system. Before antibodies form, an antigen called p24 is produced if you have HIV.
Most HIV tests are done on blood or oral fluid. They could also be used with urine.
To know more about HIV infection
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