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Question: Assume you are studying a microorganism from a hot spring that uses organic carbon as an energy and carbon source. The microorganism is a facultative anaerobe and can use nitrate as a terminal electron acceptor. Your lab partner inadvertently mixes your isolate with a number of other microorganisms in the lab. To continue your research, you need to re-isolate the hot spring microbe.
a) Develop an enrichment medium and conditions to support the growth of your microbe.
b) Discuss the steps you would take to recover your original microorganism.
Nigericin is an ionophore that exchanges K+ for H+ across membranes. describe how the treatment of functioning mitochondria
Describe the significance of historical achievements in proving the role of microorganisms in human health and disease and maintaining health of the environment. Be sure to explain the current classification of microorganisms.
In modern blimps, the gas of choice used to inflate them is helium rather than hydrogen. Hydrogen would be lighter, but helium is safer. Discuss similarities and differences of the atomic structure of hydrogen and helium.
The drug Celebrex selectively inhibits PTGS2 even as aspirin and other non-steroidal anti-inflammatory drugs (NSAID's) inhibit both PTGS1 and PTGS2 in the same way. Why do you think researchers wanted to find out a selective inhibitor to PTGS2.
Think about another population of the same flower, but in this case there is another incompletely dominant blue allele in addition to red and white alleles.
What is one way you might get bacteria of part b growing again without changing the medium. What result could be predicted if you were to transfer the bacteria of part a to the medium containing only unsaturated fatty acids without making any other ..
What factors establish the choice of a paper strip containing bacterial endospores or a sealed ampule containing an endospore suspension for testing heat-sterilization equipment.
What offspring phenotypes would you expect from mating between a 15-cm and 30-cm pig. How many pairs of genes are regulating the tail length character? (Hint: count the phentotypic classes, or find out the sum of the ratios of the classes)
What is estimated density of firs in the forest. Why then is the gene called Dorsal, and not, for instance, Ventral.
List whether the movement is diffusion, osmosis, active transport, or bulk flow. Clarify the adaptations that increase the effectiveness of this movement. what is the meaning of this observation.
A lab is working on drugs that disrupt cell division and have created drugs that inhibit DNA replication in tumor cells. You, being a curious grad student want to test each drug and figure out which DNA replication enzyme it targets.
Based on the results of your investigation, what conclusions could you draw about the relationship between a muscle's workload and its threshold of stimulation.
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