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In a newly-explored deep-sea environment, several potentially new species of apparent bacteria have been discovered. In some of these single-celled life forms, a novel structure has been observed. The structure is apparently bound to the interior surface of the cell membrane and so does not float freely in the cytosol. Preliminary investigation indicates that this structure typically appears circular or ovoid in shape. It apparently consists of a long chain of nucleic acid wrapped around a tube of an unknown protein.
What approach would you use to isolate only cells that contain this new structure? What techniques could be used to characterize the structure and composition of the structure? How might you identify the type of protein and nucleic acid? What would you hypothesize to be the function of this structure? To what eukaryotic organelle might this structure be analogous and why?
Diplomonads, such as Giardia contain two haploid nuclei per trophozoite. Thus, During the G1 phase of the cell cycle, there should be a total of how several unreplicated chromosomes per trophozoite, and throughout the G2 phase, how many replicated ch..
Determine the articulating surfaces of the knee joint? Mention its supporting ligaments. What are knee flexor muscles?
You observe the following numbers of individuals of each genotype in a population, Determine the observed genotype frequencies in this populaiton?
Estimate the major entryway of carbon into the food chain and what is major process that "fixes" carbon into biomass?
Set up a reaction according to the following table. Fill in the amount of each component I would use to set up the reactions, and complete the table:
Explain the results for the comparison of the trials run with 0.6 grams yeast and either 20% glucose and 20% galactose.how to do Measurement of CO2 production.
Determine volume of the sodium citrate in order to make up 7.5% solution. A solution needs 250 ml of a 7.5% (w/v) solution of the tri sodium citrate.
Describe the differences between an integral membrane protein, a Davison-Danielli peripheral membrane protein, and a protein in which alpha-helices would not be found.
The researchers concluded that at some time in the past, a slug ate algal cells and their DNA was somehow incorporated into the slug's DNA. This process is called horizontal gene transfer and may have happened numerous time in many different speci..
In a single neuron, amplitude of an action potential does not depend on the strength of the stimulus. However, in your experiment, as you increased stimulus strength the amplitude of the response changed.
After contact with a patient's spinal fluid, a lab technician developed fever, nausea, and purple lesions on her neck and extremities. A throat culture grew gram-negative diplococci. What is the genus of bacteria.
Consider on all the things you learned about sex & sexuality while increasing from sources such as family, school, friends, TV, movies, music, magazines, Internet, and boy/girlfriends.
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