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Science Process Skills

  • Students at Century College use gel electrophoresis to analyze PCR samples in order to detect a group of ampicillin-resistance genes.

    Antibiotic Resistance Genes Detection in Environmental Samples

    Learning Objectives
    After completing this laboratory series, students will be able to:
    • apply the scientific method in formulating a hypothesis, designing a controlled experiment using appropriate molecular biology techniques, and analyzing experimental results;
    • conduct a molecular biology experiment and explain the principles behind methodologies, such as accurate use of micropipettes, PCR (polymerase chain reaction), and gel electrophoresis;
    • determine the presence of antibiotic-resistance genes in environmental samples by analyzing PCR products using gel electrophoresis;
    • explain mechanisms of microbial antibiotic resistance;
    • contribute data to the Antibiotic Resistance Genes Network;
    • define and apply key concepts of antibiotic resistance and gene identification via PCR fragment size.
  • A crossbill feeds on a pinecone

    Coevolution or not? Crossbills, squirrels and pinecones

    Learning Objectives
    1. Define coevolution.
    2. Identify types of evidence that would help determine whether two species are currently in a coevolutionary relationship.
    3. Interpret graphs.
    4. Evaluate evidence about whether two species are coevolving and use evidence to make a scientific argument.
    5. Describe what evidence of a coevolutionary relationship might look like.
    6. Distinguish between coadaptation and coevolution.
  • Example image of dividing cells obtained from the Allen Institute for Cell Science 3D Cell Viewer.

    A virtual laboratory on cell division using a publicly-available image database

    Learning Objectives
    • Students will name and describe the salient features and cellular tasks for each stage of cell division.
    • Students will predict the relative durations of the stages of cell division using prior knowledge and facts from assigned readings.
    • Students will describe the relationship between duration of each stage of cell division and the frequency of cells present in each stage of cell division counted in a random sample of images of pluripotent stem cells.
    • Students will identify the stages of cell division present in research-quality images of human pluripotent stem cells in various stages of cell division.
    • Students will quantify, analyze and summarize data on the prevalence of cells at different stages of cell division in randomly sampled cell populations.
    • Students will use data to reflect on and revise predictions.
  • Confocal microscope image of a mouse egg that is arrested at metaphase of meiosis II. Green, tubulin staining of meiotic spindle; red, actin staining of egg membrane; blue, DNA. This image was obtained on a Zeiss 510 Meta confocal microscope in the Department of Genetics at Rutgers University

    Sex-specific differences in Meiosis: Real-world applications

    Learning Objectives
    After completion of the lesson students will be able to:
    1. Describe the differences between female and male meiosis.
    2. Interpret graphical data to make decisions relevant to medical practices.
    3. Develop a hypothesis that explains the difference in incidence of aneuploidy in gametes between males and females.
  • American coot (Fulica Americana) family at the Cloisters City Park pond in Morrow Bay, CA. "Mike" Michael L. Baird [CC BY 2.0 (], via Wikimedia Commons,

    Knowing your own: A classroom case study using the scientific method to investigate how birds learn to recognize their...

    Learning Objectives
    • Students will be able to identify and describe the steps of the scientific method.
    • Students will be able to develop hypotheses and predictions.
    • Students will be able to construct and interpret bar graphs based on data and predictions.
    • Students will be able to draw conclusions from data presented in graphical form.
  • Snake

    Why Meiosis Matters: The case of the fatherless snake

    Learning Objectives
    Students will be able to:
    • Compare and contrast the process and outcomes of mitosis & meiosis
    • Predict consequences of abnormal meiosis including
      • The potential genotype and/or phenotypes of offspring produced when meiosis does not occur properly
      • The stage(s) of meiosis that could have been abnormal given an offspring’s genotype and/or phenotype