1. Meiosis, metaphase I, chromatid, genetic differences between chromatids, organelles. 2. Magnification calculation for electron microscope images, including scale bar, and unit conversion. 3. Pollen grain and generative nucleus role in embryo and endosperm tissue production. 4. Statistical tests, linkage in genes, chi-squared test, gene frequency analysis. 5. Secondary thickening in plant cell walls, cellulose properties, function in sclerenchyma fibers. 6. Oxygen requirement for bacterial growth, comparison of bacterial growth rates in different oxygen concentrations.