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1. What features of rats make them good experimental models to learn about factors that affect humans?2. What external features of rats are common to all mammals?3. Give 2 examples of how mammals are diverse external characteristics.4. Why do feet, pals, ears of rats not have hair?5. What is the function of the pelage other than insulation?6. Can you suggest a function for vibrissae?7. How lon are the vibrissae in relation to the head and width of the body?8. How to upper incisors mesh with the lower incisors?9. Are any teeth other than incisors present?10. Why is the mouth of a rat referred to as subterminal?11. How does the position of the eyes of a rats head differ from that on a humans head?12. What is the function of the large pinna in rats?13. Are teats exclusively mammalian structures? Why do you think so?14. What term similar to quadruped describes animals such as humans with two leg?15. What digitigrade animals do you racall?16. Are humans plantigrade or digitigrade?17. How does contraction of muscles passing under the zygomatic arch move the manduble in rats?18. What are the relative sizes of the braincases in humans and rats(measure circumference)?19. What does the similarity between the skeletal system of rats and humans suggest about the ancestry of these two mammals?
Determine what features distinguish association cortices from sensory and motor cortices? Consider thalamic input and corticocortical connections.
Which blood vessels bring blood into the glomerulus?
Discuss in some detail the pros and cons of any one proposed means (other than irradiation) to decrease the prevalence of bacteria causing food poisoning in our commercial food supplies.
The Fas ligand is a trimeric, extracellular protein that binds to its receptor, Fas. The binding of Fas ligand to its receptor alters the conformation of Fas so that it binds an adaptor protein and activates caspase-8.
List and define six methods by which materials cross the plasma membrane. Which of the these require cellular energy?
You carry out an experiment using the FRAP technique to determine the relative speed of diffusion of two proteins, A and B. Protein A has a molecular weight of 175,000 daltons and B a molecular weight of 35,000 daltons. Which protein results in th..
What is the function of dideoxyribonucleotides in sequencing DNA.
explain which is a key component of the cytoskeleton.
Define and contrast individual and class characteristics of physical evidence. Explain the different types of microscopes and usefulness in crime scenes.
List two possible mutations that might cause this phenotype. Be as specific as possible about the location of mutation. What led physician to make this diagnosis, and what might have caused the sudden attack.
What proportion of progeny would PHENOTYPICALLY resemble.
What are the common structures of all amino acids? What structure is unique for each amino acid? How many natural amino acids exist?
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