Grade: 10th Science SCI.III.3.3 Strand III: Using Scientific Knowledge in Life Science Standard 3: Heredity - All students will investigate and explain how characteristics of living things are passed on through generations. Explain why organisms within a species are different from one another; and explain how new traits can be established by changing or manipulating genes. Benchmark 3: Explain how new traits may be established in individuals/ populations through changes in genetic material (DNA). Constructing and Reflecting: SCI.I.1.4 – Gather and synthesize information from books and other sources of information. SCI.I.1.5 – Discuss topics in groups by making clear presentations, restating or summarizing what others have said, asking for clarification or elaborating, taking alternative perspectives and defending a position. SCI.II.1.1 – SCI.II.1.2 – SCI.II.1.3 – SCI.II.1.4 – SCI.II.1.5 – SCI.II.1.6 – SCI.II.1.7 – Justify plans or explanations on a theoretical or empirical basis. Describe some general limitations of scientific knowledge. Show how common themes of science, mathematics and technology apply in real world contexts. Discuss the historical development of key scientific concepts and principles. Explain the social and economic advantages and risks of new technology. Develop an awareness of and sensitivity to the natural world. Describe the historical, political, social and economic factors influencing the development of Darwin’s theory of evolution by natural selection. Vocabulary Context Genetic changes: • Variation • New gene combinations • Mutation • Natural selection • Hybrid • Pure Breed • Recombinant DNA Products of genetic engineering: • Medical advances ¾ Insulin ¾ Cancer drugs • Agricultural related products ¾ Navel oranges ¾ New flower colors ¾ Higher-yield grains ¾ Dwarf fruit trees DNA mutations • Insertion • Deletion • Point mutation • Translocation Natural and human-produced sources of mutation: • Radiation • Chemical Effects of natural and man-made contamination. Examples of variations due to new gene combinations: • Hybrid organisms • New plant varieties resulting from multiple sets of genes Knowledge and Skills Resources Students will: Coloma Resources: www.bdol.glenco.com • Show how a change in a nucleotide sequence (mutation) may show up as Glenco Biology Text – CH 11 a change in the trait of the individual. • • • • Identify mutation-causing factors in the environment. Corresponds to standard II.1.5 Debate the positive and negative effects of human manipulation of the DNA. Corresponds to standard II.1.6, I.1.5, & I.1.4 Show how a beneficial trait would become part of the members of a population. Student will identify the benefits of genetic engineering in crops Corresponds to standard II.1.4 & II.1.3 Other Resources: • Scope unit – Fundamentals of Genetics • Michigan Teacher Network – 16 resources for this benchmark • Howard Hughes Medical Institute – incredible free resources • www.msichicago.org – Genetics – Decoding Life exhibit from the Museum of Science and Industry • Brain Pop Movies Michigan State Agricultural Branch US Department of Agriculture Videoconferences Available For more information, see www.remc11.k12.mi.us/dl or call Janine Lim 471-7725x101 or email jlim@remc11.k12.mi.us III.3.HS.3 Agricultural Biotechnology from the Center for Agricultural Science and Heritage, Inc. In The News - Genetically Modified Organisms from Hook's Discovery & Learning Center Instruction • Assessment Required Assessment “Imaginary Creature” (attached) Role-play a debate on the positive and negative effects of human Optional Assessment manipulation of DNA. Opposing groups could be: parents of children with genetic disease, scientists, • Pick from a pile of cards marked pro and con for genetic companies, clergy, and civil human manipulation of DNA. Write a position groups. Role-plays of this type work paper based on the card, stating that position, best if there is a middle of the road and supporting with factual information cited in group to help the extremes come to the forum or research. some consensus. Groups will research their points of view to be • Use lab reports from growth of radiated and presented to the class as a forum for normal seeds. a state committee on genetic research. Corresponds to standard • Corresponds to standard II.1.1` I.1.4 & I.1.5 • Field trip to local nursery, horticultural garden, or fruit farms. Corresponds to standard II.1.6 • Grow radiated seeds and compare to growth of normal seeds. Corresponds to standard I.1.2 Criteria Apprent. Basic Meets Exceeds Clarity of Position Misstates the card’s position. States the card’s position with some vagueness. States the card’s position in a clear manner. States the card’s position in a convincing manner. Accuracy of States the position card’s position in an inaccurate manner. States the card’s position with one inaccuracy. States the card’s position in an accurate manner. States the card’s position in an accurate and thoughtful manner. Validity of evidence States no States one States supporting to two valid three valid arguments. supporting supportarguments. ting arguments. States more than three valid supporting arguments. Correctness of mechanics Explains with inappropriate vocabulary and grammar. Explains with extended vocabulary and exceptional grammar. Explains with partially correct vocabulary and grammar. Explains with appropriate vocabulary and grammar. Biology Required Assessment for Heredity Learners will create an imaginary creature that must have at least 6 genetic traits from a suggested list of traits. Students will describe and sketch each of the traits, showing genotypes and phenotypes for each. In addition, learners will create a sample pedigree for their creatures which includes at least 4 generations. Finally, they will design a dehybrid cross, showing the Punnett Square and the ratios produced, as well as 5 practice problems using any of their traits. Genetics Project: Design a Species Create an Imaginary Creature. The creature must have at least 6 genetic traits from the following list: 2 Single Allele Traits 1 Codominant Trait 1 Multiple Allele Trait 1 Sex linked Trait 1. Describe and Sketch each of the traits on the list, showing genotypes and phenotypes for each. (see sample) 2. Sketch two examples of your creature. The two examples must have different genotypes 3. Pick one of your single allele traits and create a sample pedigree for your creature which includes at least 4 generations 4. Show a dihybrid cross using your two single allele traits ( Ex: AaBb x AaBb ). Show the Punnet square and the ratios produced 5. Create 5 practice problems using any of your traits. You do not have to actually solve these problems, but they should be solvable. http://www.biologycomer.com/worksheets/designspecies.html 6/15/05 Genetics Project Rubric Name _____________________________ Assessment Points Element Points Possible 1. The creature has at least 6 genetic traits __________ 2. The traits chosen adhere to the specified guidelines __________ 3. The traits chosen were described and sketched __________ 4. Two examples of the creature were sketched with different genotypes __________ 5. Pedigree for the creature followed accurate format __________ 6. A dihybrid cross using 2 single allele traits was created and solved showing ratios __________ 7. Five practice problems were designed and are solvable. __________ 8. Project demonstrated mastery of genetics concepts __________ 9. Project was legible and easy to follow __________ Totals Grade and Comments from Teacher: __________ Self Teacher __________ _________ __________ _________ __________ _________ __________ _________ __________ _________ __________ _________ __________ _________ __________ _________ __________ _________ __________ _________ Teacher Notes: Focus Question: What are the positive and negative effects of agricultural chemicals that may cause mutations? Investigate and explain how living things obtain and use energy. The relationship between life and energy is complex. While the generalization that living things need energy to survive is satisfactory at one level of understanding, it fails to convey the crucial role energy plays in all aspects of life, from the molecular to the population level. At the elementary level students can compare and contrast food, energy and environmental needs of selected organisms, such as beans, corn or aquarium life. In the middle and high school, the focus is more specific on the concept that plants make and store food. Scientists speak of the flow of energy through the environment. Almost all life on the earth is sustained by energy from the sun. This energy is transformed and moved from location to location, but doesn't disappear. Plants capture the sun's energy and use it to produce energy rich organic molecules that we call food. The food molecules then serve as energy sources for plants and ultimately animals. In animals, organic food molecules are chemically broken down and carried through the circulatory system to cells, cytoplasm, and eventually to mitochondria. This is, most often the site of final energy release through the process known as cellular respiration. The chemical process of photosynthesis occurs at the cellular level and is capable of converting light energy into molecular energy. Animals are dependent on plants for this first important step in the flow of energy. In plants, light energy is captured by chloroplasts or chlorophyll and is converted to chemical energy through the making of organic food molecules when water and carbon dioxide are chemically combined to make sugar and oxygen. These sugars (organic compounds) formed in photosynthesis are used for the plant's metabolic processes and maybe ultimately be used as food for animals. The chemical process of respiration is also cellular. Cellular respiration releases stored molecular energy so the energy can be used for other life processes. Both plants and animals respire. The acquisition and use of energy by living things is a very abstract idea for students at all levels. Students tend to develop a vague and very broad definition of energy that is inconsistent with the scientific definition. This imprecise definition interferes with the acquisitions of the biological understanding of energy and its importance in a living system.