6 February 2014

     Learn more about my field trip to the Fitzgerald Marine Reserve in the movie below!

Grace Reflects on Field Study from rebecca girard on Vimeo.

12 November 2013

Watch my video about Meiosis!

Meiosis involves two divisions–Meiosis I and Meiosis II.  Meiosis is a process of division and is how sexually reproducing organisms produce gametes.  During Meiosis I, homologous chromosomes separate. During Prophase I, duplicated homologous chromosomes pair and form a tetrad (4 chromatids).  Crossing over also occurs where the exchange of portions of each chromatid occurs.  Metaphase I consists of the chromosomes lining up by homologous pairs and the spindle fibers attaching to the chromosomes.  Then each pair separates in Anaphase I, toward opposite ends of the cell. During Telophase I and Cytokinesis, the nuclear membrane forms and the cell separates into two genetically different cells (4N).  In Meiosis II, Prophase II, the spindle fibers form and the chromatids movie toward the metaphase plate. During Metaphase II, the chromosomes are positioned on the metaphase plate (vertically) and the sister chromatids separate in Anaphase II, towards opposite poles. Finally, during Telophase II and Cytokinesis, the nuclei form and the chromosomes condense. This process produces 4 haploid cells that are genetically different (4, 1N cells).

This project  proved to be challenging as I had to channel my creativity and critical thinking.  I was forced to find a creative and visual way to explain a complex division of cells.  Although time consuming, I feel more confident with the material and the color coding of each process and each chromosome helped me to visually understand Meiosis.

14 October 2013

Look below to read the research I have collected on whether or not plants can photosynthesize using artificial light.


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