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What makes you different from everyone else on this planet? More specifically, what makes you different than your siblings and/or parents? Here's a little math demonstrating genetic variation to boggle your mind... Humans have 23 pairs of chromosomes. This means, as they randomly arrange themselves in new gametes, there are 2^23 different possible combinations of chromosomes.
Thus... the possible amount of chromosomal arrangements is as follows:
The craziest fact about those mind boggling combinations? That doesn't even take into account crossing over!
There are virtually infinite combinations in which your chromosomes and the DNA contained within it could be organized - so be glad that you are unique!
Unit 5: Cellular Division Celebration of Learning on Friday, January 31st! The Unit 5 Review is posted on Extra Help: Unit 5 Page as well as below. Please make sure to check your StudentVue/ParentVue and take care of any missing assignments. On Tuesday, I will be assigning TCB to those with assignments still not submitted. Also, I will be posting grades tonight for your Unit 5: Checking for Understanding Quiz on Quia- please make sure you complete a minimum of three attempts. I will be reporting your best score - you can take the quiz as many times as you would like. Today we discussed the process of Meiosis - the production of gametes! This process follows a very similar path to Mitosis - except meiosis undergoes two sets of division and results in four genetically unique cells! The guided notes from today's lesson are posted below.
How well do you understand the process of Mitosis? Formative assessments are a great way for students and teachers to check levels of progress towards mastery in any subject or content area. Based on the results of a formative assessment, we can adapt and modify the way we study and present material. Today, students had the opportunity to take their Unit 5: Checking for Understanding quiz on Quia over Mitosis. - Unit 5 Checking for Understanding Quiz: http://www.quia.com/quiz/4587376.html Today was also a great day for Blue Valley High School as we were fortunate enough to have a guest speaker nationally known for his presentations on social media - Josh Ochs! (joshochs.com)
What is cancer? Are all cancers the same? Cancer has been characterized as an "uncontrollable growth of abnormal cells in the body" and can impact almost any type of cell in the body. (National Library of Medicine) When our cells lack the ability to regulate or stop their growth and replication, a large collection of unneeded cells is created - also known as a tumor. Cancer is prevalent in many forms and impacts people of all ages. In 2013 alone, researchers anticipate 1,660,290 new diagnosed cases of cancer in the United States. This striking figure does not even take into account the high number of people affected by basal and squamous cell skin cancers! Over the next week, students will have the opportunity to research a cancer of their choice and create a "Cancer Calendar" following the instructions and rubric posted below. Today, students selected a wide range of cancers including breast cancer, leukemia, Non-Hodgkin Lymphoma, salivary gland cancer, Waldenstrom Macroglobulinemia, and many more.
Treatment options for burn victims and other severe injuries... In the world of biomedical technology and engineering, researchers are trying to develop advanced methods for healing skin cells following burns and/or other severe injuries and infections. In Unit 5 - Cellular Division, we have been discussing the process of mitosis - or the way in which somatic cells divide and replicate. A skin graft utilizes mitosis by taking healthy tissue from another area of the patient and placing it over the damaged or infected area in hopes that it will grow and form new tissue. The class had an opportunity to watch two short clips about current biomedical research in the field of skin cell regeneration. Following the clips and discussion, Mr. Hulse presented about a skin graft treatment he assisted with while working in the surgical ward of a hospital in Mombasa, Kenya!
Paraphrasing or Plagiarizing?
With an increasing shift towards electronic publications and online research databases, more and more cases of plagiarism and fraud have surfaced in the research community. One of the recent cases involved two researchers from the University of Kansas! (Article by the KC Star) Today, our students had a great opportunity to listen to a presentation by our Library Media Specialist Miss Edwards! (@MissEdwardsBVH) The students learned how to analyze a resource, identify the main ideas, effectively paraphrase the content, and synthesize a cohesive summary without plagiarizing. Following the presentation, students had time to work on their first honors work of the semester - Honors Work #3.
Visuals can serve as great tools to help you remember important information... especially in a step by step process! Today we created graphic foldables covering the process of Mitosis! The foldables contained a student-created image and a microscope image of each phase (interphase - prophase - metaphase - anaphase - telophase - cytokinesis) as well as important information about what is actually occurring within the cell.
Students also completed a guided practice summarizing the Cell Cycle!
In class, we picked up where we left off yesterday with our POGIL: Mitosis activity at Question #10. As groups, we completed questions 10-20 and discussed the responses as a class. Also, does being "cold" actually make you sick? See video below!
How did you exercise your individuality and creativity this weekend?
Each student shared a brief recap of the documentaries they watched, the technological voids they felt, the videos they created, and the novels they began. We discussed a wide variety of topics ranging from the Blackfish documentary about killer whales in Sea World to learning about new cultures like Hinduism and even heard about stories from a 97 year old World War II veteran!
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Mr. Hulse
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October 2014
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