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The most common autotrophic organisms on Earth are photoautotrophs such as plants, eukaryotic algae, and cyanobacteria. It is possible for non-phototrophic microbes to be autotrophic. They use inorganic chemicals for energy and electrons. What descriptive name would these microbes have? Often these microbes are found deep in the ocean in geo-thermal vent regions. What temperature requirements would you suspect they have? Explain. Which cellular structures must be adapted to deal with this extreme environment? How might they be adapted? If these microbes lacked superoxide dismutase, catalase, and peroxidase what can you conclude about the effect of molecular oxygen on their growth? Explain. Since these microbes live in the ocean how would you categorize their salt requirements? Explain how they survive.
Would amylase isolated from any two organisms (for example, fish amylase vs. amylase from the small intestine of humans) show the same temperature optimum? Explain your answer.
In surgery, a surgeon pulls a loop of bowel through a 4.2 inch incision in linea alba and inspected the surface. There were smally fatty appendages hanging around length of piece of bowel.
Signal transduction and cell cycle regulation intersect in a discussion of tumor formation. Pick one signal transduction pathway we have discussed. Describe the steps involved and how the pathway leads to cell cycle activation.
Human blood may contain either or both of two antigens, A and B. Blood that contains both antigens A and "B is called AB, and blood that contains neither antigens is called type O.
Women who are heterozygous for the situation have region of the body that do possess sweat glands while other regions do not and discuss how does this uneven distribution of sweat glands in affected females occur?
What type of cross would produce the following genetic ratios? Write the genotypes that would lead to these ratios.
Does this represent a significant section from the Hardy-Weinberg ratios? Further studies show that the absence of the A/A genotype is due to the lethal effect of the A allele when homozygous.
What is the amino acid sequence of this peptide. Does the calculated (CAI) value support the hypothesis that the gene encoding the seven amino acid peptide is likely to be foreign gene?define .
Explain the concept of Bacterial Evolution. What are the main differences between the three groups of the Domains? (Archaea, Bacteria, and Eukarya)
Name the two evolutionary hypotheses that can explain why organisms senesce (1). Pick one of them, and explain how it works (2). Give an example of this hypothesis-you may use a hypothetical organism and/or traits, provided it is realistic (2).
10) The rhomboid muscles are innervated by (the) A) Dorsal scapular nerve. B) Cervical nerves. C) Accessory nerve. D) Long thoracic nerve. E) None of the above.
In comparison to the composition of carbohydrates and fats, which element found in protein makes them unique?
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