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ISOLATION OF DNA FROM ONION
Students perform a lab in which they extract DNA from onion cells. Students break through the cell and nuclear membranes and then break down the protein that the DNA is wrapped around.
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SEPARATION OF A STARCH-GLUCOSE MIXTURE USING GEL FILTRATION
High schoolers make a starch-glucose solution and pour it through gel in order to separate the starch from the glucose. They examine how starch is a larger molecule than glucose and test for the presence of these substances using other...
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CULTURING PLANTS FROM EMBRYONIC PLANT TISSUE
Students use this laboratory exercise as a growth medium that contains the macronutrient and micronutrient needs of plants. They observe the effects of different hormones on tissue cultures and must use variations of the basic growth...
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Comparison of Four-, Six-, And Eight-bp Cuts in Calf Thymus Dna
Young scholars investigate the use of restriction enzymes to recognize a four-, six-, and eight-nucleotide sequence. They utilize restrictive endonucleases to cut Thymus DNA and compare results by viewing the DNA fragments on Agarose Gel...
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Active Ingredient Screening Test for Plants
Students explore the growth of bacteria. They determine if various plant materials contain active ingredients that inhibit the growth of bacteria. In addition, they complete a student data sheet.
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Creative Ways To Teach Evolutionary Concepts
Students explore evolutionary concepts in cartoons and lab activities. They describe and explain evolutionary concepts featured in a cartoon and participate in laboratory activities.
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Collect Your Own Drosophila Lab
Learners study Drosophila by catching them. They construct catcher-containers to catch Drosophila using fruit as bait. After collection, they examine the flies and collect data to be displayed.
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Observing the Development of Drosophila in Apple Juice Agar
Students observe the development of the Drosophila fly. They observe the first two stages - the egg and the 3 larval instars. They observe the culture every day for 8 days using a stereo dissecting microscope.
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The Effect of Citrus Oils on Fruit Flies
Learners answer the question, "How could citrus fruits be toxic to fruit flies when fruit flies live on fruit?" They conduct an investigation using four different citrus oils and fruit flies and analyze data collected.
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A Lab Trilogy for Beginning Biology Teachers
Students are able to explain their models to other students and to their parents. Then students like to decorate the room by hanging the models or constructing mobiles of a number of models.
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Extraction of DNA from Onion
Students study DNA by isolating it from plant tissue. They determine the purpose of each step in the isolation procedure as it relates to the physical and biochemical characteristics of the genetic material
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Plant Biotechnology: Controlling Tissue Differentiation
Students demonstrate hormonal control of plant tissue differentiation and relate this differentiation to gene expression. They explore the effects of hormones (auxin and cytokinin) on the genes that control tissue differentiation in callus.
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The Genetic Basis of Neurological Disorders
Students describe some aspects of known genetic defects on the human neurological condition. They participate in a variety of exercises including drawings, games, and analogies.
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Genetics and Hypermedia
Students use HyperCard and HyperStudio because it allows them to become more creative. They are exploring a new and different studying style and independence in their analysis and reporting of data. This is a great outlet for students...
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Studying Fossils
Students hypothesize dinosaur size and speed by looking at dinosaur track way or by measuring a dinosaur models water displacement. In addition, techniques to help students become familiar with the ways paleontologists study fossils can...
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Where Should We Place Archaeopteryx?
High schoolers classify Archaeopteryx using pictures of actual fossils and scientist representations of how the animal might have looked. They compare Archaeopteryx's characteristics to those of the five extant vertebrate groups to...
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Estimating the Live Mass of Dinosaurs
Students calculate the volume of scale model dinosaurs using a water displacement method. They use formulas to calculate the live mass each of the species of dinosaur. Then they complete and discuss a series of questions.
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Estimation of Population Growth By Counting Offspring: Seed Multiplication
Students calculate the reproductive rate of a plant that creates multi seed fruits. They graph exponential growth and the complete a series of questions that help them infer that natural selection processes are at work in this population.
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Comparative Embryology Using Japanese Medaka Fish
Students conduct an experiment to control the breeding of Japanese Medaka fish. They collect the fertilized eggs and view and record the fish's embryological development daily to compare the stages to human development.
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Charlotte and Her Relatives Visit the Classroom: Spider Activities, Experiments and Projects
Learners compare and contrast different spider species that they capture and maintain in the classroom for several days. They identify and research the species characteristics and living requirements then conduct an experiment on spider...
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Selecting Soil Organisms in Compost
Students conduct an experiment to demonstrate that many of the enzyme systems needed to break down society's wastes exist in nature among the decomposers in a compost pile. They culture compost bacteria on starch agar to examine the...
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The Evolution of Canis pedatus
Students examine the given characteristics of a previously unknown dog-like creature, Canis pedatus, to decide if the creatures would survive when relocated to a new environment. They work in small groups to decide whether or not the...
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The Value of Genetic History
Students research and assemble their own pedigrees using star patterns for each family member and coloring in various dominant traits. They arrange these patterns on long strips of paper making large, colorful family pedigrees.
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Camouflage and Protective Coloration: A Model of Natural Selection
Students collect data and compare whether protective coloration or camouflage provides better biological fitness in a given environment. They simulate predator prey interactions of two different species and use gene frequencies to...
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