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1. The recipe for 10x TBE buffer is 890 mM Tris, 890 mM boric acid, 20 mM EDTA. What is the concentration of 1x TBE buffer?
2. A recipe calls for 10 ml of a 25mM stock of EDTA. However, all you have on hand is a 500 mM stock. How much more concentrated is what you have relative to what the recipe calls for? (i.e. what is the relative concentration).
3. The protocol for transforming Chlamydomonas requires 300 ul of a culture at a density of 1x108 cells/ml. The culture you have is at 1x106/ml. What is the concentration of your culture relative to what the protocol calls for?
NASA hopes they may one day be useful in producing some electricity on a spacecraft. What mode of nutrition do these bacteria most likely use.
Explain why does nitrogenous waste build up in cellular fluids? Discuss the tradeoffs between water loss, energy efficiency and toxicity with the excretion of ammonia, urea, and uric acid.
express the role of double helix in complimentary base pairing in DNA replication.
Determine which of the following repair pathways do not involve the use of a homology dependent repair system?
Explain the three kinds of the mammals based upon how their young grows.Explain briefly the functions of sensory neurons, inter-neurons, and motor neurons in nervous system.
What could be expected phenotypes, and in what number will the y be expected? Suppose no linkage.
Suppose when looking at a slide of 3-crossed threads, red is on bottom, and yellow on top. When the adjustment knob is rotated forward on your microscope.
Meiotic nondisjunction events will create aneuploid gametes.define normal Drosophila male meiotic segregation.
What is the possibility that - if they have a daughter - the daughter will be red-green colorblind. How several are born of each genotype.
In addition to protein phosphorylation and dephosphorylation, protein degradation also plays key role in regulating signal transduction pathways and cell proliferation.express how protein degradation affects cell proliferation.
Earlier in 2010, the Pacific island nation of Samoa decided to switch from driving on the right to driving on the left. Why may these cause difficulties? Why is it complicated for a cell to change codon usage, say, switching a "stop" codon to a trypt..
Explain normal regulation of blood glucose through the pancreatic hormones. How is this altered with Diabetes?
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