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When a population of cells is examined with a microscope, thepercentage of the cells in the M phase is called the mitotic index. The greater the proportion ofcells that are dividing, the higher the mitotic index. In a particular study, cells from a cell cultureare spread on a slide, preserved and stained, and then inspected in the microscope. A hundred cellsare examined: 9 cells are in prophase; 5 cells are in metaphase; 2 cells are in anaphase; 4cells are in telophase; the remainder, 80 cells, are in interphase. Answer the followingquestions:a. What is the mitotic index for this cell culture?b. The average duration for the cell cycle in this culture is knownto be 20 hours. What is the duration of interphase? Of metaphase?c. Going back to the living culture of these cells, the averagequantity of DNA per cell is measured. Of the cells in interphase, 50% contain 10 ng (1nanogram = 10-9 g) of DNA per cell; 20% contain 20 ng DNA per cell; theremaining 30% of the interphase cells have amounts of DNA between 10 and 20 ng.Based on these data, determine the duration of the G1, S, and G2 portions ofthe cell cycle.
It is a very curcial concept to understand how the immune response is mounted against viruses, bacteria, protozoans and helminthes. For an effective immune response, both innate and adaptive immunity should work together.
This Project report elaborates a critical review of important elements attached to Advanced Glycated End Products (AGEs). It is very crucial to understand the process called Millard reaction.
Soil stabilization is the permanent physical and chemical alteration of soils to enhance their physical properties. Stabilization can increase the shear strength of a soil and control the shrink-swell properties.
This assignment has three parts which contains questions related to Microbiology. It contains basic principles of microscopy, staining techniques in microbiology and microbial growth in the food industry.
Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?
Please describe how one might search for chemical structure, biologic function relationships, involving small molecular weight lipophylic compounds. Provide one example.
Write a case study which detailing a scenario of a patient being investigated in the Haematology laboratory.
The use of PCR and genetic approaches in biotechnology
Glucose oxidase is an enzyme that can be used for measurements of glucose levels by combining this reaction with an oxygen probe.
What phenotypic ratio would you get if you crossed a white mouse and a heterozygous brown mouse?
Prepare an essay on nosocomial infection.
To increase the awareness of monitoring and recording the blood pressure of patients and practice measuring blood pressure in a safe environment.
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