Essays on Karyotype

A General Outlook on Meiosis and Mitosis Processes

Compare and contrast mitosis and meiosis. Think phases, starting and ending products, chromosome numbers, the purpose of each, and the cell types that complete each type of division. Be sure to do a DIRECT compare and contrast, and write in paragraph form - Mitosis involves one cellular division resulting in identical daughter cells while meiosis involves two cellular divisions resulting in different daughter cells. Meiosis produces four haploid cells while mitosis produces two diploid cells- this ensures genetic diversity by sexual reproduction in meiosis and cellular reproduction and production of general growth products in mitosis. The chromosome number also ...

Vanishing Twin Syndrome

Vanishing Twin Syndrome In 1945, Walter Stoeckel proposed that the general population of conceptions were higher for multiple fetuses that supposed, suggesting that a twin or multiple fetuses may die in utero and subsequently be reabsorbed without clinical evidence by the surviving fetus/es, mother, or placenta (Stoeckel, 1945, cited in Levi, 1976). Named the “vanishing twin syndrome”, the cause is generally not known. If abnormalities are determined, they appear related to early development and are chromosomal; improper implantation of the cord may also play a role. This paper presents a brief overview of the etiology, demographics, consequences, and tests ...