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1. Hypothesize why some substances were not metabolized, while others were. Research the chemical formula of Equal and Splenda and explain how it would affect respiration.
2. If you have evidence of respiration, identify the gas that was produced. Suggest two methods for poistively identifying this gas.
3. How do the results of this experiment relate to the role yeast plays in baking?
4. What would you expect to see if the yeasts' metabolism was slowed down? How coud this be done?
5. Indicate sources of error and suggest improvement
One recent approach to vaccine development has been production of peptide vaccines. In these vaccines, antigenic peptides are injected instead of whole bacteria or viruses.
Codons with U or C as the second nucleotide, for example, tend to specify hydrophobic amino acids. Can you recommend a possible explanation for this phenomenon in terms of the early evolution of the protein synthesis machinery?
You are given a milk sample that Mr. Milkman claims contains 4.5 x 108 CFU/ml. He claims this is within the limit of acceptable CFU/ml for Grade A milk.
An alien spacecraft has crash landed on Ram Plaza here on campus. One of the space travelers seems to have survived, but with very serious injuries.
Suppose you're interested in determining the long-term effect of 5-hour energy drink on fruit flies by studying mutants. Would you undertake a forward genetic screen or a reverse genetic screen?
What is the major morphological difference between mammalian red blood cells and avian red blood cells? Describe what is happening in plasmolysis when onion cells are placed in a hypertonic solution. Sketch a plasmolysed cell.
Which organelle generates oxygen? Which organelle consumes oxygen? Explain why are viruses not considered to be living?
Describe how a linear sequence of amino acids gives rise to the three-dimensional structure of proteins. Detail the significance of this structure, how it may be modified, and the results of such modification.
The dorsal pigment pattern of frogs can be either leopard or mottled. The trait is controlled through an autosomal gene.
How would this method result in purification of tubulin.
The HIV virion is a sphere that is roughly 140 nm in diameter. Determine hat particular kind of microscope is needed to visualize HIV virion
Assume, a main product of photosynthesis in green leaves, is synthesized by a battery of enzymes. The substrates for sucrose synthesis, D-glucose and D-fructose.
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