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This assesses understanding of both enzymes and genetics. Students analyze genetic sequences of lactose intolerant and lactase persistent people, describe how helpful alleles spread in a population and speculate about why they might not spread, analyze a pedigree, describe two of Mendel's laws of inheritance, and both complete and analyze a dihybrid cross.
Answers are included.
Coded for Virginia 2010 Biology SOLs
5.b (gamete formation)
5.d (prediction of inheritance of traits based on the Mendelian laws of heredity)
5.f (genetic variation)
7.b (how genetic variation impacts the survival of populations)
7.c (how natural selection leads to adaptations)
7.d (emergence of new species)