Students identify some of their own genetic traits, such as whether or not they are able to taste the bitterness of PTC or roll their tongues.
Then they model homologous chromosomes to demonstrate how reproduction results in the inheritance of genetic variation.
Punnett Squares are used to apply concepts of statistics and probability to predict the distribution and variation of expressed traits in examples from humans, plants, and animals.
Students use a randomized selection process to model the observed occurrence of allele frequency to compare to statistically expected outcomes of crosses.
Phenotypes, genotypes, monohybrid and dihybrid crosses, test crosses, dominance, incomplete dominance, codominance, and recessives are discussed.
Includes worksheets, data sheets, and complete answer keys.
Designed for 24 students working in six groups of four.
Grades 6-10
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