Research Paper On Meiosis

Meiosis is the dividing of cells as the embryo develops in the womb, as stated in the Pearson Anatomy & Physiology edition 10. It starts the haploid division of gametes that further develops the embryo into a fetus and then into a fully functional baby within nine months. This form of cell replication creates four daughter cells that have only half of the amount of chromosomes that are contained within a human body, 23 instead of 46. Within the book it explains that meiosis goes through Interphase, Prophase, Metaphase, Anaphase, Telophase and finally Cytokinesis (a separate process) twice, to create all four of the daughter cells. Interphase is the life of the cell before it divides. Prophase is when the DNA condenses into Chromosomes, the …show more content…
It is typically diagnosed after birth or even before the child is born. The reason it is so easy to tell if a child has Down syndrome is based off of the unassuming characteristics that are associated with the disorder. Physical features are altered and are easily noticed, for example, eyes are more upwardly slanted, a lack of muscle tone is evident, and a single deep crease curves the palm of the hand, these are expressed on the Specific Birth Defects page of the Center for Disease Control and Prevention’s website. The website also mentions some mental deficiencies and other possible risks, for example, increased risk of leukemia and thyroid disease. An inability to express emotions, speak properly and a mental disability are all parts of having Down syndrome. The frequency of Down syndrome children is increased as a woman gets older and gives birth to a child. For example on the NDSS website there is a chart that reads, at the age of 20 years old there is a 1 in 2,000 chance that the child will have Down syndrome, but at 49 years old there is a 1 in 10 chance that the child will have Down