Using your growth curve determine approximately how long is lag phase? The log phase? The stationary phase? Can you determine when the death phase begins from these data?
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Using your growth curve determine approximately how long is
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- In which phase of the growth curve do cells divide in a constanttime period?if a student conducts an experiment cultivating a cell. at the initial time the number of cells was measured with a spectrophotometer and yielded OD = 0.01 and after 20 hours the OD increased to OD = 0,15. calculate the growth rate and doubling time.could you please plot the semilog graph of the Growth Curve and calculate the doubling time of the attached data?
- The following image shows part of counting chamber you used to estimate cell viability for yeast cells. If the dilution factor you used was 1:200, and the total sample volume was 5 ml, then calculate the cell viability, the cell density and the total cell.How does the loss of cells that are not replaced affect theaging process? Give examplesWhat specific structure is indicated by the pointer? 2 years How many years of growth are represented between the red line?
- B) A total of 2.5 x 105 cells were harvested from the patient. You need the cells to fill a scaffold with dimensions of 20mm x 20mm x 4mm at a final density of 2 x 104 cells/mm³. After culturing the harvested cells, you found that they have a doubling time of 36 hours. Given the growth rate is proportional to the number of cells, determine the time it will take to achieve the desired cell count. Show your work.Which of the following is the best definition of generationtime?(a) The length of time it takes for lag phase to occur(b) The length of time it takes a population of cells to double(c) The minimum length of time it takes a cell to divide(d) The length of time a culture stays in stationary phase(e) The length of time it takes log phase to occurSuppose that you were tasked with 4 cultures of a specific Bacteria Species in Luria Broth medium: (1) culture A – cells are in lag phase; (2) culture B – cell in log phase; (3) culture C – cells in stationary phase; and culture D – cells in decline phase. Imagine that you observe the growth rates of each culture in a fresh sterilized LB medium. Now, plot the outcome growth curves of cultures A, B, C and D in a single graph.
- What type of growth is displayed in the graph?Outline a method for using apomixis to maintain feminized Cannabis Assume apomixis is controlled by a single dominant gene. It can be obligate or facultative, gametophytic or sporophytic, you decide. Discuss advantages and disadvantages of your proposed method..All of the following are valid measurements of growth except: A. Counting viable cells B. Estimating the weight of cells C. Determining the dry weight of cells D. Streaking for single colonies E. Measuring some cellular component F. Counting the total number of cells