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Let us say that you are working with microtubules. You have attached kinesin (the standard type) dimers to a glass slide and have added complete microtubules to the slide along with ATP. Your kinesins are lined up well enough that you can see the microtobules moving in one direction. Now, suppose to have the two ends labeled so you know which is which. The plus end is oriented to your right and the minus end is to your left. Because the kinesin is fixed, of course, the MT will move in one direction or the other. Which way will it move (to your right or to your left)? Explain
You carry out an experiment using the FRAP technique to determine the relative speed of diffusion of two proteins, A and B. Protein A has a molecular weight of 175,000 daltons and B a molecular weight of 35,000 daltons. Which protein results in th..
Based on the Nernst equation, the equilibrium potential for any ion distributed across a membrane is dependent on the internal and external concentrations of the ion,
Describe briefly the different experiments performed to identify and confirm the transcription factors required for conversion.
Which of the following is not found in a eukaryotic promoter?
Which statement correctly relates to DNA and RNA.
How many units are present in prolyl 4-hydroxylase? What is the name of the Krebs Cycle intermediate that is needed for the action of prolyl four? Why do proteins fold faster in vivo than in vitro?
What is EMG (electromyogram) measuring and how might it correlate to muscle force? Describe the physiological reasons that an EMG would sound like a revving engine? and why would prostigmin intensify the sound? and how exactly would postrigmin inf..
Gina is a college sophomore on a tight budget. An analysis of her diet shows that she consumes less than the RDA for vitamin C and more than the RDA for thiamin. Does she have a vitamin C deficiency.
What is the yield of ATP when each of the following substrates is completely oxidized to CO2 by a mammalian cell homogenate.
In preparation for a summer barbecue, your classmate cuts up chickens on a wooden carving board. After running the board under water for a some seconds,
Describe two different population genetic mechanisms that may cause populations to experience imperfect adaptation. Give an example of one of the mechanisms and describe how it leads to imperfect adaptation.
Assume you ingest 20 cells of Salmonella typhimurium in a chicken taco. Some of the bacteria are killed as they pass through the stomach but ten viable cells survive and reach the intestine.
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