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Cell Biology

  • A pair of homologous chromosomes.

    Meiosis: A Play in Three Acts, Starring DNA Sequence

    Learning Objectives
    • Students will be able to identify sister chromatids and homologous chromosomes at different stages of meiosis.
    • Students will be able to identify haploid and diploid cells, whether or not the chromosomes are replicated.
    • Students will be able to explain why homologous chromosomes must pair during meiosis.
    • Students will be able to relate DNA sequence similarity to chromosomal structures.
    • Students will be able to identify crossing over as the key to proper pairing of homologous chromosomes during meiosis.
    • Students will be able to predict the outcomes of meiosis for a particular individual or cell.
  • Arabidopsis Seedling

    Linking Genotype to Phenotype: The Effect of a Mutation in Gibberellic Acid Production on Plant Germination

    Learning Objectives
    Students will be able to:
    • identify when germination occurs.
    • score germination in the presence and absence of GA to construct graphs of collated class data of wild-type and mutant specimens.
    • identify the genotype of an unknown sample based on the analysis of their graphical data.
    • organize data and perform quantitative data analysis.
    • explain the importance of GA for plant germination.
    • connect the inheritance of a mutation with the observed phenotype.