| « BACK to "Cytology and Genetics" |
|
CYTOLOGY AND GENETICS - SHORT VERSION.....continued Animal Cells and Genetics: - Typical Animal Cell, showing all details visible by light and electron microscope in different colour - Squamous epithelium, isolated cells. Nuclei and cytoplasm are shown - Striated muscle l.s. showing nuclei, striations, myofibrils - Compact bone, human t.s. showing cells and canaliculi - Hyaline cartilage, human t.s. - Nerve fibres isolated, showing myeline sheaths and Ranvier’s nodes - Simple animal cells in liver, t.s. with cellular membranes, nuclei, and cytoplasm - Electron micrograph of a liver cell showing nucleus, mitochondria, cytosomes, lysosomes, dictyosomes, glycogen - Phagocytosis in Kupffer’s star cells of the liver, t.s. - Ovary of cat, t.s. showing primary, secondary, and Graafian follicles - Fallopian tube with embedded egg (oocyte), t.s. high magnification detail - Testis of frog, t.s. showing spermatogenesis. Spermatogonia, spermatocytes, spermatids, and mature spermatozoa - Testis of crayfish, t.s. showing meiosis and spermatogenesis - Animal mitosis, colour graphic design with 9 different stages - Reduction division during spermatogenesis in human and animals, all stages, colour graphic design - Giant chromosomes in the salivary gland of Chironomus larva, with large chromomeres. Stained for DNA - Giant chromosomes of Chironomus, colour graphic design - Human chromosomes in smear from culture of blood - Karytype of human chromosomes - Lampbrush chromosomes of diplotene stage in living egg cell of salamander (phase contrast) - Uteri of Ascaris megalocephala, t.s. to show details of meiosis with chromosomes and nuclear spindles - Barr bodies (sex chromatin) in female squamous epithelium - Pigment cells in skin - Storage of glycogen in liver cells, sec. - Nucleus of an amoeba, live microphotograph - Mitochondria in thin sec. of kidney or liver, specially prepared and stained - Mitochondria, fine structure, colour schematic design - Golgi apparatus in sec. of spinal ganglion - Golgi apparatus, fine structure, colour schematic design - Ova from Psammechinus (sea urchin). Fertilized ovum - Ova from Psammechinus (sea urchin). Two-cell stage - Ova from Psammechinus (sea urchin). Four-cell stage - Ova from Psammechinus (sea urchin). Eight-cell stage - Inheritance of two linked genes in Drosophila: cross, backcross, link- age groups - Gene exchange between two corresponding linkage groups of Drosophila, chromosomal interpretation - Drosophila genetics, adult wild type, w.m. - Drosophila, "barr eye" mutant, w.m. - Drosophila, "brown eye" mutant, w.m. - Drosophila, "vestigial wing" mutant, w.m. - Drosophila, "white eye" mutant, w.m. Plant Cells and Genetics: - Typical Plant Cell, showing all details visible by light and electron microscope in different colours - Electron micrograph of a plant cell with nucleus, cell walls, vacuoles, mitochondria, endoplasmatic reticulum, plasmodesma and chloroplasts - Epidermis of Allium (onion), w.m. showing simple plant cells with cell walls, nuclei and cytoplasm - Stem apex and meristematic tissue of Elodea, l.s. showing growing zone and leaf origin - Wood of Tilia macerated and w.m. showing wood cells, vessels and fibres - Root tips of Allium l.s. showing cell division (mitosis) in all stages: - Mitosis: root tip; interphase (resting stage) - Mitosis: root tip; early prophase - Mitosis: root tip; late prophase - Mitosis: root tip; early metaphase - Mitosis: root tip; equatorial plate of metaphase - Mitosis: root tip; early anaphase - Mitosis: root tip; telophase - Mitosis: root tip; reconstruction - Maturation divisions (meiosis and mitosis) in the pollen mother cells of Lilium, 18 stages, colour design - Pollen mother cells of Lilium. Early prophase (leptotene) first division (meiosis) showing chromosomes as fine threads - Pollen mother cells of Lilium. Later prophase (diakinesis) of first division (meiosis) Shortening of chromosomes - Pollen mother cells. Metaphase and anaphase of first division (meiosis) showing nuclear spindles and contracted chromosomes - Pollen mother cells. Second division, interkinesis, four cells stage - Plasmodesmata, in t.s. of palm seed - Mitochondria, thin l.s. of Allium root tips stained to show the mitochondria - Fruit of Pyrus (pear) t.s. showing stone cells (scelerenchyma) - Tuber of Solanum (potato) t.s. shows cork and starch grains - Cucurbita (pump- kin) l.s. of stem showing vascular bundles with sieve tubes, spiral and annular vessels, sclerenchyma fibres - Ricinus endosperm t.s. showing aleurone grains - Ovary of Lilium (lily), t.s. showing arrangement of ovules and embryosac - Spirogyra, green alga, showing conjugation stages and formation of zygotes. |