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Essay / Research Paper Abstract
2 pages in length. The writer discusses how meiosis is different from mitosis and how meiosis I is different from meiosis II. Bibliography lists 2 sources.
Page Count:
2 pages (~225 words per page)
File: LM1_TLCmeios.doc
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Unformatted sample text from the term paper:
that equally reflect the same chromosome reciprocal as the parent cell. Meiosis divides the chromosomes from forty-six to twenty-three at the time that cell formation takes place, which helps
to distinguish sexual reproduction; mitosis serves to make new cells from existing cells by splitting each one into a new individual cell with no reference to sexual reproduction. In
the case of chromosome deficient babies, where development is mutated, geneticists readily surmise it to be a possibility that there exists a stronger connection between maternal age and the initial
stage of meiosis in aborted fetuses than research has been able to prove (Ezzell 292). An international team of nearly two dozen researchers
was commissioned to study the connection between the extra chromosome and the occurrence of Downs Syndrome. Headed by human geneticist Sylianos E. Antonarakis of Johns Hopkins University in Baltimore,
the scientists found that the additional chromosome affected the initial stage of the eggs meiotic development. Critical to these findings is the fact the women young or old were
fully capable of experiencing the chromosome problem during this initial stage, however, it was the older women who were more likely to take the fetus to full term, negating the
possibility of considering any potentially alternative choice (Ezzell 292). Interestingly, the study found that a full ninety-five percent of the extra chromosome was a product of the mother, with just
five percent originating from the father. Digging deeper into the mystery, the researchers were able to establish the fact that three-quarters of those existing chromosomes errors occurred during the
initial stage of cell division. Said Antonarakis: "What was surprising was that we didnt see a difference in maternal age according to the stage of meiosis where the chromosome
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