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Q1. A 24-year old female automotive technician presents herself at nurse practitioner's office. She complains of fever and of pain in her left hand. On physical examination, the patient had a deep wound on her left palm that was oozing pus. She had purplish, red streaks running up her left arm. She had enlarged lymph nodes at the elbow and under her arm. The patient's skin was warm and dry. In her history, the patient had punctured her left palm with a sharp metal from the undercarriage of a "real cherry" 1977 Malibu about a week earlier. She said the wound had bled for a few minutes and she thought that she had washed it "real good" with soap and water. She had covered wound with the large "band-aid" and gone back to work. She developed fever about three days later. For the past couple of days, she "did not feel so good" and had vomiting and diarrhea. What kind of infection do you believe she has in this hand?
a. Streptococcus pyogenes b. Staphylococcus aureus c. Clostridium botulinumd. Pseudomonas aeruginosa
Q2. A pure-breeding pea plant is self-crossed for many generations. A study of resulting plants indicates that the mean maturation time (from planting to maturity) is 77 days with a standard deviation of 2.39 days. Suppose that the breeder selects plants that mature in 69 days for the next generation. Approximation the time required for the next generation to mature.
If the genes were expressed in the cell, predict that signal would win out for the following combinations. Give details your reasoning.
Assume two samples of water are taken just under the surface on a lake, one sample in the early morning, and the other in the late afternoon. Harriet had liposuction several years ago, but has since gained back all the weight lost through the procedu..
Design a biotechnological approach to getting better the amino acid content of wheat. How are you going to communicate your decision to the surgeons, medical center employees, governing board, and to public.
Trace a route of air from the nares to an alveolus. Name subdivisions of organs where applicable, and discriminate between conducting and respiratory zone structures. how large a force does she exert on the sled.
What does this show about the relation between voluntary and involuntary reflex movement. If the bacteriorhodopsin molecules were randomly oriented, would you expect ATP to be synthesized? Give details about the answers.
If the mutation is in mitochrondrial DNA, will the four haploid cells probably be all Pyr-, all Pyr+, or a combination? What if the mutation is in nuclear DNA. Why is mitochondrial function critical for growing on pyruvate.
Consider a transmembrane protein complex that forms a hydrophilic pore across the plasma membrane of a eukaryotic cell. The pore is made of five similar protein subunits, each of which contributes a membrane-spanning alpha-helix to form the pore.
Assume that there are 63 different naturally occurring amino acids. If all 64 possible combinations of bases for a codon resulted in coding for 63 different amino acids and one stop codon, which of the next mutations would NOT be possible.
The patient lives near the San Luis Rey River and has no history of foreign travel, blood transfusion, or intravenous drug use. What is the disease? How was it obtained.
Soil stabilization is the permanent physical and chemical alteration of soils to enhance their physical properties. Stabilization can increase the shear strength of a soil and control the shrink-swell properties.
Sort the statements into appropriate bins depending on which type of learning they explain. What is her anatomical dead space volume.
In mid afternoon, they are on it's under surface, each caterpillar hanging by a few legs. Offer a hypothesis to explain this behaviour. How would you test it.
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