Writing in Science
WS4.2 Like Mother Like Son
Describe some of the inherited characteristics found in these pairs of animals.
WS4.3 DNA Spiral Staircase
Compare and contrast this staircase with a DNA Molecule.
Real Life Application
Enthusiasm and controversy abound where cloning is concerned. So, what to make of it all? These interviews with Dr. Lee Silver, Dr. Rudolf Jaenisch, and Dr. Don Wolf, three prominent cloning experts, show the wide range of opinions that exist in the scientific community on the subject of cloning.
Real World: Cystic Fibrosis and Sickle Cell Anemia
The following are a series of real world genetics problems that relate to the genetic disorders cystic fibrosis and sickle cell anemia. They will be used to assess your comprehension and application of Mendelian genetics and molecular biology.
Videos and Podcasts
Stem Cells: Seeds of Hope (6:59)
Heredity: How Our Parents' Genes Effect Us (3:06)
Each generation receives chromosomes from their parents that give the DNA that creates each living thing. Mapping our human genetic code may help humans provide better lives for mankind.
Genetic Disease (6:52)
Sickle cell anemia is a genetic disease caused by errors in protein synthesis.
Rules of Herdity: Using Punnett Squares (5:04)
According to Gregor Mendel’s Rules of Heredity, individuals carry two genes for each trait, but only pass one gene for each trait to each offspring. Of the two genes, one or both may be dominant or recessive. Punnett squares are used to figure out the likelihood that offspring will inherit and express particular genes.
Gel Electrophoresis Virtual Lab
Have you ever wondered how scientists work with tiny molecules that they can't see? Here's your chance to try it yourself! Sort and measure DNA strands by running your own gel electrophoresis experiment.
Can DNA Demad a Verdict?
Since 1987, forensic DNA analysis has made appearances in U.S. courtrooms. Originally known as "DNA fingerprinting," this type of analysis is now called "DNA profiling" or "DNA typing" to distinguish it from traditional skin fingerprinting. Although used in less than one percent of all criminal cases, DNA profiling has helped to acquit or convict suspects in many of the most violent crimes, including rape and murder.
Simulate DNA electrophoresis using food colors from your kitchen pantry.