DNA Structure and Replication: CrashCourse Biology #10

Friends Have More DNA in Common Than Strangers People may unsuspectingly choose friends who have some DNA sequences in common with them, a new analysis finds. Researchers compared gene variations between nearly 2,000 people who were not biologically related, and found that friends had more gene variations in common than strangers. The study lends a possible scientific backing for the well-worn clichés, "We're just like family," or "Friends are the family you choose," the researchers said. NEWS: How The Sun Changes Your DNA

DNA- The ins and outs! Watson and Crick's Paper Watson and Crick published a paper that described the complementary structure of DNA. This paper rocked the science world and illuminated the structure of DNA! Check out their Paper below! Genetic pedigrees In these diagrams, people are represented by symbols, usually circles for female and squares for male, and the bottom line represents the children of the couple above. For simplicity, 4 offspring are shown in these examples. However, in practice the number, proportion and order of birth are likely to vary. 10 talks on the future of stem cell medicine Will the next generation think about diseases like Alzheimer’s and diabetes the way we think about polio and the whooping cough? Susan Solomon, the co-founder of the New York Stem Cell Foundation (NYSCF), certainly hopes so. In this fascinating talk from TEDGlobal 2012, Solomon delves into the foundation’s work on research with stem cells, which she calls the “black boxes for diseases.”

What are stem cells? - Craig A. Kohn Stem cells are a rapidly advancing field of biological research. Since Dr. James Thomson first cultivated human embryonic stem cells at the University of Wisconsin - Madison in the late 1990s, this field of researched has exploded with potential. The links below provide access to a curriculum developed under the supervision of Dr. 3D Animations - DNA Molecule: How DNA is Packaged (Basic) DNA Molecule: How DNA is Packaged (Basic) DNA packaging. Each chromosome consists of one continuous thread-like molecule of DNA coiled tightly around proteins, and contains a portion of the 6,400,000,000 basepairs (DNA building blocks) that make up your DNA.

DNA Fingerprints In this lesson, students learn how DNA fingerprinting has been used in criminal investigations. They do an interactive Web activity to learn about the process of DNA fingerprinting. In teams, they interpret different DNA fingerprints, then do a jigsaw activity to explore other uses of DNA forensics. Hands-on Activities for Teaching Biology to High School or Middle School Students by Drs. Ingrid Waldron and Jennifer Doherty, University of Pennsylvania The expression "hands-on, minds-on" summarizes the philosophy we have incorporated in these activities - namely, that students will learn best if they are actively engaged and if their activities are closely linked to understanding important biological concepts.

Practice Exams for Genetics These practice exams were put here to help you monitor your progress in genetics. Do not study only these questions as new questions will be written for each test and old questions will be modified. It is important that you understand the question and why the correct answer is correct.

Honors Genetics Use of our material: We have worked very hard on Powerpoints/games/worksheets, etc to make this a resource for our students. If you are using our materials, please give us credit for our efforts by listing us as a source with links to our site. High School Life Science Conceptual Understanding: Heredity is the passing of characteristics from one generation to the next via genes. Chromosomes are single long DNA molecules which carry the instructions for forming particular species characteristics. Genes are a segment on the DNA that code for a particular trait. An alternative form of a gene found at the same place on a chromosome is called an allele.

Genetics Genetics includes the study of heredity, or how traits are passed from parents to offspring. The topics of genetics vary and are constantly changing as we learn more about the genome and how we are influenced by our genes. Inheritance British Couple Clones Dead Dog For $100K On Dec. 26, Laura Jacques, 29, and Richard Remde, 43, of Yorkshire, United Kingdom, welcomed two new puppies - dubbed Chance and Shadow - cloned from the DNA of Dylan, their deceased boxer, the Guardian reports. Dylan died of a brain tumor in June at the age of 8. [READ: Do You Love Your Dog More Than Humans?] The couple sent his DNA samples to Sooam Biotech Research Foundation in South Korea, which offers a commercial dog-cloning service for about $100,000 per procedure, according to the Guardian. Sooam Biotech, the only laboratory of its kind in the world, has successfully cloned hundreds of dogs, though Dylan's is reportedly the oldest sample from which a dog has been cloned successfully.

Fruit Fly Tutorial Index In this virtual lab we will cross various fruit flies to see what phenotypes are present in the F1 and F2 generation. Using the data from these crosses, we will make a hypothesis regarding the genotypes of the parental (P) generation and test the hypothesis using a chi square analysis. **Print out a copy of the Data Page **Review how to do a chi square analysis Background Information Drosophila melanogaster is a fruit fly, a little insect about 3mm long, of the kind that accumulates around spoiled fruit. It is also one of the most valuable of organisms in biological research, particularly in genetics and developmental biology.

Genetic - PDF Files Printed versions of the NIH curriculum supplements are available to qualified people free of charge. For additional information, please read the "Supplement Distribution Policy." The following links will open a PDF file in a new browser window. If you would like to save the PDF file to your computer, follow these steps: PC Users In Internet Explorer, right-click on the link and select "Save Target As..."