Answer the following statement(s) true (T) or false (F)
1. Kimwipes can be used to clean dirty ocular or objective lenses.
2. Only use the coarse focus with the low power objective.
3. When performing the quadrant streak plate technique for isolation, the different quadrants should not overlap.
4. Each colony that grows on a petri dish (plate) originates from one cell/spore, which landed or was swabbed onto the plate.
5. Most of the organisms we use in our labs are BSL-1; therefore, we follow the BSL-1 guidelines. Assume normal face-to-face labs as described in the lab manual.
1. False
2. True
3. False
4. True
5. False
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A) cerebrospinal fluid B) spinal cord C) interneurons D) the bones of the skull
Explain why a food web gives a better picture of a community than does a food chain
What will be an ideal response?
You decide to repeat the Meselson-Stahl experiment, except this time you plan to grow the E. coli cells on light 14N medium for many generations and then transfer them to heavy 15N medium and allow them to grow for 2 additional generations (2 rounds of DNA replication). If the semiconservative model of DNA replication is correct, what is the expected distribution of DNA in the density gradient after two rounds of replication?
A. one band of intermediate density and one band of heavy density B. one band of intermediate density C. one band of heavy density and one band of light density D. one band of intermediate density and one band of light density E. one band of heavy density