http://www.teachengineering.org/view_lesson.php?url=collection/duk_/lessons/duk_genetics_mary_less/duk_genetics_mary_less.xmllessontext/xmlWhat’s Dominant?Engineering K-Ph.D. Program, hereditygeneticschromosomesmitosismeiosisallelesdominancerecessivenessmitosismeiosishemoglobinalleledominantrecessiveIn a class discussion format, the teacher presents background information about basic human genetics. The number of chromosomes in both body cells and egg and sperm cells is covered, as well as the concept of dominant and recessive alleles. Students determine whether or not they possess the dominant allele for the tongue-rolling gene as an example.
An understanding of genes is currently leading genetic engineers to develop treatments to cure genetic disorders.
Students will be able to state the number of chromosomes in the body cells, sperm cells, and egg cells of humans. Students will be able to explain why sperm and eggs cells have only half the number of chromosomes found in the body cells. Students will be able to give a brief definition for allele. Students will be able to explain the difference between dominant and recessive alleles, and give an example. 30TeachEngineering.orgMary R. Hebrank (Project and Lesson/Activity Consultant), Duke UniversityS1014376North_CarolinaMath4.01 Collect, organize, analyze, and display data (including box plots and histograms) to solve problems.77S100C65ANorth_CarolinaMath4.01 Collect, organize, analyze, and display data (including scatterplots) to solve problems.88S10284BDNorth_CarolinaScience1.06 Use mathematics to gather, organize, and present quantitative data resulting from scientific investigations:<br />• Measurement.77S10284C4North_CarolinaScience1.08 Use oral and written language to:<br />• Defend conclusions of scientific investigations.77S10284C9North_CarolinaScience1.10 Analyze and evaluate information from a scientifically literate viewpoint by reading, hearing, and/or viewing:<br />• Scientific text.77S1028510North_CarolinaScience5.01 Explain the significance of genes to inherited characteristics:<br />• Genes are the units of information.77S1028513North_CarolinaScience5.02 Explain the significance of reproduction: Sorting and recombination of parents' genetic material. 77S1028515North_CarolinaScience5.03 Identify examples and patterns of human genetic traits:<br />• Dominant and recessive.77S1028517North_CarolinaScience5.04 Analyze the role of probability in the study of heredity:<br />• Role of each parent in transfer of genetic traits.77S102853FNorth_CarolinaScience1.06 Use mathematics to gather, organize, and present quantitative data resulting from scientific investigations:<br />• Measurement.88S1028546North_CarolinaScience1.08 Use oral and written language to:<br />• Communicate findings.88S102854DNorth_CarolinaScience1.10 Analyze and evaluate information from a scientifically literate viewpoint by reading, hearing, and/or viewing:<br />• Scientific text.88S10285D8North_CarolinaScience7.05 Investigate aspects of biotechnology including:<br />• Specific genetic information available.88United StatesCopyright 2012 - Engineering K-Ph.D. Program, Pratt School of Engineering, Duke Universityhttp://www.teachengineering.org/policy_ipp.phphttp://www.teachengineering.org/2008-09-267Teacher