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There are 12 videos in this category and 1 video in 1 subcategory.
Category Videos
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Not Right For WatchKnowLearn
Ages: 14 - 18
965 Views:
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In this video segment adapted from NOVA scienceNOW, learn about the epigenome, a set of chemical switches that interact with DNA and affect how some genes are expressed. The epigenome tells cells what they will be and how they will function. Research...ers in the field of epigenetics are studying mice as well as humans to determine how gene expression is affected by environmental factors and lifestyle choices. What they've learned is helping them explain differences that can appear over time in identical twins, and more broadly, in the general population. Closed captioning included. Run time 05:36.
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September 19, 2010 at 11:24 PM
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Not Right For WatchKnowLearn
Ages: 8 - 15
1304 Views:
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This is a short clip from the Bill Nye episode about Genes. It explains what genes are and where we get them. Other key vocabulary words in this video include: cells, DNA, chromosomes, molecules, dominant, and recessive. (06:54)
May 25, 2011 at 04:54 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
3810 Views:
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A teacher-made rap video about genetics for a seventh grader class. The music is sung to the tune of "Forever" by Drake (featuring Kanye West, Lil Wayne, and Eminem) and includes lyrics on a black screen. Some of the lyrics include, "Listen up and l...isten 'bout your genes. Maybe you know how to draw, or you sing a song better than Tim McGraw, or you grow to be seven feet tall, whatever it's all about your genes....." A video to review material. (3:30)
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May 25, 2011 at 02:37 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
958 Views:
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Dominant Genes
From teachersdomain.org, produced by Donal DNA Learning Center
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Using several animated sequences, this interactive activity adapted from the Dolan DNA Learning Center demonstrates the principle of dominance, which is fundamental to modern genetics. By crossing two pea plants, each pure-bred for a given trait like... pea color, we learn why only the dominant trait—in this case, yellow pea color—appears in any and all offspring. We also learn why some offspring in subsequent generations exhibit the recessive trait—green—even though this may not have been apparent in the previous generation. Written explanations are on each screen but no audio.
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August 14, 2010 at 08:16 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
842 Views:
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This video segment from NOVA: "Cracking the Code of Life" travels to Iceland to explore scientist and president of deCODE Genetics Kari Stefansson's use of extensive family trees and genetic analyses to track down the genetic abnormalities that cause... disease. CLosed captioning included. Run time 09:27.
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September 21, 2010 at 10:36 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
820 Views:
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Like the main power switch that turns on all the lights in a building, master control genes set in motion the cascades of genetic and chemical processes that create the living world's most basic and most complex structures. This video segment explore...s the groundbreaking research that uncovered the power of master control genes. Closed captioning included. Run time 02:58.
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September 22, 2010 at 12:46 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
814 Views:
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In this video segment from NOVA: "Cracking the Code of Life" geneticist Eric Lander of the Massachusetts Institute of Technology explains the genetic similarities and differences among organisms, and stresses that having a list of genetic components ...-- as we have with the map of the human genome -- is a long way from understanding how all those parts work together. Closed captioning included. Run time 06:34.
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September 22, 2010 at 02:37 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
383 Views:
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This interactive activity from NOVA examines how mutations in different regions of an organism's DNA affect gene expression—whether genes are turned on or off during the organism's development. An animated model depicts two DNA segments in the nucleu...s of a fertilized egg. Each segment contains a coding gene, enhancers in the noncoding regulatory region, and other DNA not associated with the gene. As the egg develops, each cell produces its own proteins. Whether and where these proteins bind to the DNA determines gene expression. Mutations can change how receptors in each of the regions permit or prevent such binding. This, in turn, influences which traits are displayed.
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May 20, 2012 at 03:14 PM
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Not Right For WatchKnowLearn
Ages: 8 - 16
961 Views:
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This video takes a voyage into the nucleus into one of the cells of life. The camera goes through the outer cell wall, cytoplasm, and then tiny parts of the cell, but the final destination is the nucleus. Video goes on to explain that there are 23 DN...A molecules, these are your chromosomes, 46 and they come in pair. Explains where they come from, content of chromosomes, chromosomes shape, how big a chromosome is, what they look like, and discusses a government website that explains what a chromosome does or causes. This site also shows genetic disease profiles. Also, the video discusses how other creatures have different numbers of chromosomes. Run time 04:15.
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July 29, 2009 at 09:06 AM
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Not Right For WatchKnowLearn
Ages: 12 - 18
388 Views:
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A chromosome is a long strand of DNA that contains the information that makes individuals unique. Find out how many chromosomes people have with information from a science teacher in this video. (01:36)
April 15, 2010 at 10:39 AM
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