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a, the half life of a radiative carbon is 5700years, if the radioactive material left in the storage has activity of 5ci, what will be the activity after 3000years?.
b, what is the half life of radioactive iodine if from initial activity of 5600cpm,after 20 days were left 990.3cpm.
Determine which of the following repair pathways do not involve the use of a homology dependent repair system?
The one hundred mile Leadville Marathon is being held on a very hot day and you are running the medical tent. A runner is brought in unconscious and with severe dehydration.
In an experimental situation, a student researcher inserts an mRNA molecule into the cytoplasm of a eukaryotic cell after she has removed its 5' cap and poly-A tail.
Question: A patient in your care has a total body water volume of 42 Liters, a hematocrit of 40 percent an extra celllular fluid volume of thirteen liters and a plasma osmolarity of 300 mOsm/ liter.
The branching gastro vascular cavity of cnidarian and Platyhelminthes: Do these animals have distinct boundary organs? Compare and contrast the basic body plan of these animals? How does the fluid "circulate" without one or more pumps? Explain why..
Did the enzymes completely digest all the DNA they were uncubated with? How do you know.
It is determined that the human immune system synthesizes 10 8 – 10 10 antibodies. The portion of a typical active in binding antigen consists of two variable domains each containing one hundred amino acids.
If the centrioles are mispositioned in the cell, the functional mitotic spindle would fail to form. In this state, how will chromosome segregation be affected . Microtubules will not attach to kinetochores.
They have one child. What is the possibility that their child will have the disease. 52 dark moths and 21 light moths were at random recaptured. Which would be the most reasonable assumption.
What type of promoters are found in the T-DNA that control oncogenes and opine synthesis genes? What is the basis for tumor formation in the Agrobacterium-plant? What causes the tumor to form? What products of the bacteria are needed to cause plan..
In a discussion of plant move from water to land, what is the differentiation of the subterranean root? Someone please help me with a "layman's" explanation!
Describe the debate between the theory of spontaneous generation and biogenesis. Explain how Louis Pasteur's experiment with S-next Flasks in the 1900's resolved this debate. Include a detailed description of pasteur experiment and an analysis of ..
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