Du søkte etter: Læremateriale for biologi

Artikkenummer: (EDVOS-70)

Produsent: EDVOTEK

Beskrivelse: The body defends itself from attack by infectious agents like bacteria and viruses by producing antibodies. Enzyme linked immunosorbent assays (ELISA) test for antibodies present in the blood, which indicate infection. In this experiment, students perform a simulated ELISA test to identify infected samples and compare them to control samples.

UOM: 1 * 1 Items

HMS Tilbud

Artikkenummer: (EDVO141)

Produsent: EDVOTEK

Beskrivelse: Cancer cells differ from normal cells by the combinations of proteins that are present on their surfaces. Antibodies against these proteins will specifically bind to cancer cells and not to normal cells. This allows early detection of cancer and potentially a way of delivering cancer therapies. In this simulation experiment the reaction of cancer cell markers and their corresponding antigens are demonstrated.

UOM: 1 * 1 Items

HMS Tilbud

Artikkenummer: (EDVO255)

Produsent: EDVOTEK

Beskrivelse: When bacteria are used to make medicinally useful proteins by transformation, the protein of interest must be separated from all of the other cellular proteins. In this experiment, the unique fluorescent properties of GFP and BFP are used as an assay during their purification from an <i>E. coli</i> extract. The column fractions containing GFP or BFP are identified by fluorescence and then purified. As an optional activity, purified protein fractions can be separated by SDS polyacrylamide gel electrophoresis (SDS-PAGE) to estimate the purity and size of the GFP and BFP proteins.

UOM: 1 * 1 Each

Tilbud

Artikkenummer: (EDVO957)

Produsent: EDVOTEK

Beskrivelse: According to the World Health Organisation, between 2 and 3 million cases of skin cancer occur globally every year. Many of these cases are caused by preventable damage to DNA by UV light. In this experiment, students expose plasmid DNA to shortwave UV light to simulate the effect of sunbathing. The DNA is then analysed by agarose gel electrophoresis to observe the damage.

UOM: 1 * 1 Each

Tilbud

Artikkenummer: (EDVO303)

Produsent: EDVOTEK

Beskrivelse: Four experimental modules are combined into one experiment to provide a comprehensive biotechnology exploration focusing on the green fluorescent protein (GFP). Bacterial cells are transformed to express the GFP. The transformed cells are then grown and the GFP purified by column chromatography. Finally, the purity of the protein fractions are analysed by SDS polyacrylamide electrophoresis.

UOM: 1 * 1 Each

Tilbud

Artikkenummer: (EDVO223/AP08)

Produsent: EDVOTEK

Beskrivelse: In this experiment, transformed cells take up a plasmid containing the Green Fluorescent Protein (GFP) gene. The GFP gene was isolated from the jellyfish <i>Aequorea victoria</i>. Transformed colonies expressing the GFP protein are visibly green in normal light but will fluoresce brightly when exposed to longwave UV light.

UOM: 1 * 1 Items

Tilbud

Artikkenummer: (EDVO207)

Produsent: EDVOTEK

Beskrivelse: This experiment introduces students to Southern blotting as a tool for DNA fingerprinting in a hypothetical paternity determination. DNA fragments are first separated by agarose gel electrophoresis, then transferred to a nylon membrane and finally visualised by staining.

UOM: 1 * 1 Items

Tilbud

Produsent: EDVOTEK

Beskrivelse: Ready-to-Load™ PCR kit introduces students to the principles and applications of the Polymerase Chain Reaction (PCR). This simulation experiment does not contain human DNA and does not require a thermal cycler.

Produsent: EDVOTEK

Beskrivelse: Ready-to-Load™ kit for introducing the use of restriction enzymes as a tool to digest lambda DNA at specific nucleotide sequences.

Artikkenummer: (EDVO153)

Produsent: EDVOTEK

Beskrivelse: Using prestained LyphoProteins, subunit molecular weights are determined by analysis using denaturing SDS vertical polyacrylamide gel electrophoresis. Prestained proteins with unknown molecular weights are assigned molecular weights based on the relative mobility of prestained standard protein markers.

UOM: 1 * 1 Each

HMS Tilbud

Artikkenummer: (EDVO314)

Produsent: EDVOTEK

Beskrivelse: Suppressor genes, such as p53, are essential for cell functions. Mutations in the p53 gene can be correlated to predisposition for certain cancers. Mutations of genes can either be inherited or accumulated due to environmental insults. This experiment deals with a family pedigree determination of several generations relating to cancer formation due to p53 gene mutation.

UOM: 1 * 1 Items

Tilbud

Artikkenummer: (EDVO953)

Produsent: EDVOTEK

Beskrivelse: Drinking water is routinely tested for contamination. If a screening tests positive, more sophisticated tests are required. One such test uses PCR in multiplex format. In this experiment, students test for the presence of three separate, classroom-safe organisms in a water sample using a single PCR reaction.

UOM: 1 * 1 Items

Tilbud

Artikkenummer: (EDVO908)

Produsent: EDVOTEK

Beskrivelse: Genetic modification of plants is a controversial area of biotechnology. All such experiments in plants begin with establishing plant cells in culture. This involves de-differentiating plant cells to form plant 'stem cells'. In this experiment, students establish cell cultures of African violets from leaves. They then use plant growth regulators to encourage root growth from the cultured cells, and produce a mature plant.

UOM: 1 * 1 Each

Tilbud

Artikkenummer: (EDVO333)

Produsent: EDVOTEK

Beskrivelse: Students use primers for a 300 base pair Alu insertion in chromosome 16 (PV92) to determine their own genotype. They can then compare their class results with others around the world over the internet.

UOM: 1 * 1 Each

Tilbud

Artikkenummer: (EDVO986)

Produsent: EDVOTEK

Beskrivelse: Observer forskjellene mellom pattedyrcelletyper og hvordan disse cellene fungerer. Celler festes på objektglass og elevene farger cellene på objektglasset for å se de morfologiske egenskapene til celletypene. Disse cellene er svært trygge for klasseromsbruk.

UOM: 1 * 1 Items

Tilbud

Artikkenummer: (EDVO300)

Produsent: EDVOTEK

Beskrivelse: When DNA is subcloned in the pUC polylinker region, β-galactosidase production is interrupted, resulting in the inability of cells to hydrolyse X-Gal. This results in the production of white colonies amongst a background of blue colonies. This experiment provides a DNA fragment together with a linear plasmid and T4 DNA ligase. Following the ligation to synthesis the recombinant plasmid, competent <i>E. coli</i> cells are transformed and the number of recombinant antibiotic-resistant white and blue colonies are counted. β-galactosidase activity is assayed from blue and white bacterial cells.

UOM: 1 * 1 Each

Tilbud