Continuing Education Booklets Wallcharts and Slide Series : Gel Electrophoresis : Automated Electrophoresis : Platelet Function : Helena.com Helena Electrophoresis Booklets HighResolution Protein Electrophoresis - A Clinical Overview with Case Studies Lawrence M. Killingsworth, Ph.D. This monograph is a quick, practical reference for laboratorians. This guide is free for the asking. To request a copy, email us at Literature@Helena.com or call our Literature Services Department at 1-800-231-5663.)
PCR Primers are short pieces of DNA that are made in a laboratory. Since they're custom built, primers can have any sequence of nucleotides you'd like. In a PCR experiment, two primers are designed to match to the segment of DNA you want to copy. Through complementary base pairing, one primer attaches to the top strand at one end of your segment of interest, and the other primer attaches to the bottom strand at the other end. In most cases, 2 primers that are 20 or so nucleotides long will target just one place in the entire genome. Primers are also necessary because DNA polymerase can't attach at just any old place and start copying away.
Bloodstain Pattern Analysis in Action: Chamberlain Case" In August 1980, the Chamberlain family was camping near a rock formation called Ayers Rock in Central Australia. Lindy Chamberlain put two of her children, 4-year-old Reagan and 10-week-old Azaria, to bed in their tent. When she returned, she cried "The dingo took my baby!" According to Lindy, when she got to the tent she saw a dingo dragging something out of it. 7.6 Molecular Structure and Polarity Learning Objectives By the end of this section, you will be able to: Predict the structures of small molecules using valence shell electron pair repulsion (VSEPR) theoryExplain the concepts of polar covalent bonds and molecular polarityAssess the polarity of a molecule based on its bonding and structure Thus far, we have used two-dimensional Lewis structures to represent molecules.
Genetics for Kids Gregor Mendel studied peas. Source Covering genetics for kids can help youngsters understand why family members who are related by blood may share similar physical traits. This fascinating topic also explains why sometimes family members look different from each other, such as in the case of a family where someone has red hair every few generations. What is Genetics? Restriction Fragment Length Polymorphisms (RFLPs) Restriction enzymes cut DNA at precise points producing a collection of DNA fragments of precisely defined length. These can be separated by electrophoresis, with the smaller fragments migrating farther than the larger fragments. One or more of the fragments can be visualized with a "probe" — a molecule of single-stranded DNA that is complementary to a run of nucleotides in one or more of the restriction fragments and is radioactive (or fluorescent). If probes encounter a complementary sequence of nucleotides in a test sample of DNA, they bind to it by Watson-Crick base pairing and thus identify it.
Azaria Chamberlain case: Dingo DID take baby rules coroner Mother served six years in jail for murdering tot who disappeared in the night during a camping trip to Ayers Rock in 1980She and her then husband had always maintained that a wild dog had snatched their childBaby's body was never found despite intensive searches by police, Aboriginal trackers and park rangersHer clothing was later found beside a dingo's lair at the base of the rockIncredible scenes as coroner fights back tears as she delivers the verdict at fourth inquest into the case By Richard Shears Published: 03:11 GMT, 12 June 2012 | Updated: 03:22 GMT, 13 June 2012 After more than three decades of bitter controversy, a coroner ruled yesterday that a dingo was responsible for the death of a baby in the Australian Outback. The decision finally confirmed that a wild desert dog had entered the tent in which Azaria Chamberlain and her family were staying, near Ayers Rock, and carried her away to her death.
Getting your practical programme together - OSC IB Blogs Hopefully, by now you will have had time to reflect on the new course and start thinking about your practical programme (PSOW). It is my intention of this blog post ot give you some ideas of things you can add to your PSOW. Are you aware of the ten mandatory labs / skills that you are expected to teach your students? Genetic engineering: a guide for kids by Tiki the Penguin What makes you human or me a penguin? Genes. These are the instructions for how to build a body which all living things have. Tiny creatures like snails have them just as big animals like whales do. So do all plants and other living things.