The Cell and its Organelles Lists of Nobel Prizes and Laureates The Cell and its Organelles Play the Incredible Megacell Game About the game An ultracentrifuge is used for separating the organelles in the cell according to their size, shape and density. The Nobel Prize The 1974 Nobel Laureates in Physiology or Medicine developed methods that made it possible to see and identify organelles, the specialised compartments inside all our cells.Read More » Share this: Share on facebook Share on google_plusone_share Share on twitter More Sharing Services Share on email To cite this pageMLA style: "The Cell and its Organelles". Recommended: The Legacy of Alfred Nobel On 27 November 1895 Alfred Nobel signed his last will in Paris. Play the Blood Typing Game Try to save some patients and learn about human blood types! Unlocking the Secrets of Our Cells Discover the 2012 awarded research on stem cells and cell signalling. Contact E-mail us Press Sitemap A-Z Index Frequently Asked Questions Terms Follow Contact | Press | Sitemap | FAQ | Terms
Home | Pearson Foundation Animated Blood Types Since Rh negative people may produce anti-Rh antibodies, Rh positive blood should not be given to an Rh negative recipient. Based upon the above table, Rh positive recipients can theoretically receive positive or negative blood, and Rh negative donors can theoretically give to Rh positive and Rh negative recipients. Therefore, the "universal donor" is O Negative, while the "universal recipient" is AB Positive. Anti-Rh (immune-type) antibodies can readily pass through the placental capillary membranes. A serious potential problem called maternal-fetal blood incompatibility or Rh Disease could occur with a pregnant Rh negative mother who carries an Rh positive fetus. The medical term for this maternal-fetal condition is "erythroblastosis fetalis" because of the presence of nucleated, immature RBCs called erythrobasts in the fetal circulatory system. Like most topics in biology, the true life explanation is a lot more complicated.
The PCR Method - a DNA Copying Machine Lists of Nobel Prizes and Laureates The PCR Method - a DNA Copying Machine Play the Eye of the Donkey Game About the game PCR is a method by which a few fragments of DNA can be duplicated into millions in a couple of hours. The Nobel Prize The 1993 Nobel Prize in Chemistry was awarded for the invention of PCR, a method that made it possible to copy a large numbers of DNA fragments in only a few hours. Share this: Share on facebook Share on google_plusone_share Share on twitter More Sharing Services Share on email To cite this pageMLA style: "The PCR Method - a DNA Copying Machine". Recommended: The Legacy of Alfred Nobel On 27 November 1895 Alfred Nobel signed his last will in Paris. Play the Blood Typing Game Try to save some patients and learn about human blood types! Unlocking the Secrets of Our Cells Discover the 2012 awarded research on stem cells and cell signalling. Contact E-mail us Press Sitemap A-Z Index Frequently Asked Questions Terms Follow Contact | Press | Sitemap | FAQ | Terms Follow us:
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 The Faculty Project DNA . Genetics In the 150 years since Mendel's first experiments, geneticists have discovered that genetic traits usually don't follow simple inheritance patterns. Some traits, like human eye color and stature, are produced by the interplay of many sets of genes; these are known as "polygenic traits." Other traits show a phenomenon called intermediate expression, in which a heterozygous genotype will produce a phenotype that's different from homozygous dominant genotypes. In snapdragons, for example, a homozygous dominant genotype makes red flowers, homozygous recessive makes white flowers, and heterozygous individuals are pink. In addition, some genes have more than two different versions. This type of inheritance is called multiple allelic inheritance. Now that you know a little about blood types, let's learn about the genes that code for them.
Genetics Course|Biology Course Summary This course is based on 7.03 Genetics, Fall 2004 made available by Massachusetts Institute of Technology: MIT OpenCourseWare under the Creative Commons BY-NC-SA license. This course discusses the principles of genetics with application to the study of biological function at the level of molecules, cells, and multicellular organisms, including humans. The topics include: structure and function of genes, chromosomes and genomes, biological variation resulting from recombination, mutation, and selection, population genetics, use of genetic methods to analyze protein function, gene regulation and inherited disease. Reading Material 1. Course Material Not available. Other Resources 1. Software
Thinking Skills Vocabulary and Definitions Thinking Skills Vocabulary and Definitions Dr. Bob Kizlik Updated March 15, 2014 Many, both within, and outside education, disagree whether thinking skills can be taught. The vocabulary below and the definitions are intended to help the prospective teacher sort out the various thinking skills and terminology associated with curriculum and instructional decision making. The vocabulary below can help you sort out some of this so that it makes sense to you. Thinking - thinking refers to the process of creating a structured series of connective transactions between items of perceived information (my own definition). Activating prior knowledge: recalling something learned previously relative to the topic or task Analyzing skills: core thinking skills that involve clarifying information by examining parts and relationships. A thinking process is a relatively complex sequence of thinking skills. FOCUSING SKILLS - attending to selected pieces of information and ignoring others. 1. 3. 5. 7. 11. 15.
Genetic Disorders 3D Animation Library Animations can be viewed within your web browser or downloaded for play from your computer. In some genes the protein-coding sections of the DNA ("exons") are interrupted by non-coding regions ("introns"). RNA splicing removes the introns from pre mRNA to produce the final set of instructions for the protein. Transcript: As DNA is transcribed into RNA it needs to be edited to remove non-coding regions, or introns, shown in green. RNA splicing begins with assembly of helper proteins at the intron/exon borders. This process is repeated for every intron in the RNA.