Biology. AP Bio activities and resources. APBio review resources. Tree Building. Mitochondrial DNA. Mitochondria, the oxygen-processing factories of eukaryotic cells, have their own DNA, a relic from the distant past when they were free-living organisms.
Evidence of this is the slightly different genetic codes found in nonplant mitochondria. For example: (For those who may be interested, here is the entire sequence of a human mitochondrial DNA.) Another significant difference in mitochondrial DNA is that it is circular, like the DNA of prokaryotes. Mitochondrial DNA is inherited ONLY in the maternal line; all of the mitochondrial DNA in any living human came from that individual's mother. Thus, it is not altered by sexual reproduction; that is, it does not undergo recombination. Cell Models. For life all cells have basic needs.
Cells have diverged in their structure and function to accommodate these survival requirements. Here are some KEY TERMS to help you think, explore and search for similarities and significant differences that have become the characteristics of eukaryote (animal, plant) and prokaryotic (bacteria) cells. Examples might be searching: eukaryote prokaryote reproduction or animal plant cell energy. Reproduction / cell division Energy trapping, storage and consumption Form / shape / structure Cell specialization Compartmentalization of cell functions Communication within and beyond the cell Cell / organism survival. Learn.Genetics™ Genetics Animations.
Biology Animations. DNA from the Beginning - An animated primer of 75 experiments that made modern genetics. Evolution. AP Biology. AP Interactive Animations. iPadAppCollections & List - mostly FREE :-) Bioinformatics tools. Home of CELLS alive! ENSI/SENSI: Evolution/Nat.of Sci.Home Page. 19 February 2017 ATTENTION, FILMMAKERS!
A chance to make a film about evolution and win a prize! Scientists and science educators of all stripes -- students, postdocs, faculty, and full- or part-time science communicators -- are invited to enter the Seventh Annual Evolution Video Competition, sponsored by the Duke Initiative for Science & Society, the Howard Hughes Medical Institute, the Society for the Study of Evolution, and the BEACON Center for the Study of Evolution in Action. To enter, please submit a video that explains a fun fact, key concept, compelling question, or exciting area of evolution research in three minutes or less. Entries may be related or unrelated to your own research, and should be suitable for use in a classroom. The finalists will be screened at the Evolution 2017 meeting in Portland, Oregon. Understanding Evolution.
Evolution. BiologyJunction. The Biology Corner. Biology Help Topics. Knuffke Science Land. BioBuilding: Synthetic Biology for Teachers. PDF of this page BioBuilding for Teachers Welcome!
We're glad you've found these pages. The curricular materials in Synthetic Biology offered here present exciting possibilities for teaching, as well as a non-zero amount of energy on your part to implement the content in your classroom. It's hoped that the materials in this "teacher resources" space will minimize the barrier for trying some or all of the units. Using the BioBuilding site Each BioBuilder lab is written for the students, and includes an introduction to the genetics and engineering principles, a detailed procedure and a lab report or other assignment as well as a report rubric. AP Worksheets. Membrane Channels - Membrane Channels, Membrane Potential, Cell Membrane.
Introduction to Statistics: Mean, Median, and Mode. Artificial Selection Investigation - Wisconsin Fast Plants Network. DNA with a Twist. Researchers show that DNA supercoils are dynamic structures that can “hop” long distances, a phenomenon that could affect gene regulation. iStock, alengo Scientists’ understanding of how long strings of DNA are packaged into tiny spaces just got a little more complicated.
New research on single molecules of DNA show that supercoils—segments of extra-twisted loops of DNA—can moving by “jumping” along a DNA strand. The results, published today (September 13) in Science, give researchers new insights into DNA organization and point to a surprisingly speedy mechanism of gene regulation inside cells. “This is the first study that addresses the dynamics of DNA supercoils,” said Ralf Seidel, who studies movement of molecular motor proteins along DNA at the University of Technology Dresden, but was not involved in the research.
DNA, being a double helix, is naturally twisted. Poplulation Growth Activity. 1.
Cut open the pepper and count the number of seeds inside. Zebrafish made to grow pre-hands instead of fins - life - 15 December 2012. Cell Slider on SciStarter. SickleCell_Genetics_Student. Campbell Biology In Focus AP* Edition 1e 2014 with Mastering Biology. Skip Links Shopping Cart (0) Find your Account General Manager Program Navigation Online Samples Request More Information Purchase Products Customer Service.
Espresso for the Mind. The Biology Exam Content. Exam Information (AP Biology Exam from spring 2012 and prior)Exam Content The Topic Outline in the Course Description provides details about the content on the exam.
About 25 percent of the multiple-choice questions are likely to be on the subject areas listed under Area I (molecules and cells). Similarly, one of the four essay questions will also be taken from that area; another question will be on Area II (heredity and evolution); and the remaining two questions will be on Area III (organisms and populations). In answering any of the four free-response questions, students may need to analyze and interpret data or information drawn from lab experience (as well as from lecture material) or to integrate material from different areas of the course. Multiple-Choice Questions For sample multiple-choice questions, refer to the Course Description.AP Biology Course and Exam Description, Effective Fall 2012 (.pdf/490KB)