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Create and observe bacteria in petri dishes (and then under the 'scope) for my own learning experience. I thought I was being sufficiently sanitary while heating the agar and pouring it into the plates. But before I even got the chance to start up bacteria in one plate to isolate in the other (both plates were supposed to be sterile), there were many colonies growing in both of them. I heat up the agar by boiling it and I held the plates in boiling water just before pouring the agar into them. I try to open the covers a minimal amount while pouring the agar. I put a rubber band around each once I'm done pouring. I'm not sure what else I can do to get a sterile environment in the dishes. Any tips? Also, once I do get to putting bacteria in them, how will I do that sterilely also? I have inoculating loops that I'll sterilize before using but that also requires opening the lids.
Hematopoietic stem cells cultured in the presence of which receptor differentiate into T cells rather than B cells?
How do respiration and/or photosynthesis affect homeostasis in a living organism.
In garden peas, grey seed coat color is dominant to white seed coat color. In the following cross, the phenotypes of the parents and offspring are known, but the genotypes are unknown.
Is there a difference in approach to valuation by US GAAP and IFRS? Discuss and note two or three specific differences. In addition, clearly
Assume you want to evaluate kidney function in a 55-year¬-old, obese man with type II diabetes,and you ask him to collect his urine over a twenty-four hour period.
A geneticist crosses a plant with blue flowers to a plant with white flowers. The offspring include plants with dark blue flowers (1/4), light blue flowers (1/2),
The idea is that this arrangement will allow animals and plants to migrate between refuges. Why will such migration be important. Which of the compounds that normally protects the liver and other vital organs.
If a population of algae-eaters experiences predation pressure from pike-cichlids which is the least likely to be observed in the algae-eater population over the course of many generations.
As a 1st step towards cloning the ding-dong gene from Drosophila, you find a transposon insertion within the gene.
It is not normal to administer a pure drug to a patient. Almost all the drugs are administered in form of a medicine. A medicine is a mixture of one or more drugs combined or formulated with the other inactive materials known as excipients.
Breathing Rate increasesas Power raise. However, it is not expectedto increase linearly throughout the Power domain. Explain how BR increased as Power increased
Assume you were given a tube having 1 ml of frozen Staphylococcus epidermidis culture known to contain 5.3 x 103 bacteria/ml. You were told to thaw it by heating at 80°C for 20 min,
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