Antigenic drift - Study guides, Class notes & Summaries

HSC 4504 Exam 3 Questions and Answers (Graded A)HSC 4504 Exam 3 Questions and Answers (Graded A)HSC 4504 Exam 3 Questions and Answers (Graded A)HSC 4504 Exam 3 Questions and Answers (Graded A) antigenic shift - ANSWER-rearrangement of genes - discontinuous and irregular variation major antigenic drift - ANSWER-mutation and selection- gradual and continuous variation minor antigenic variation - ANSWER-Alter surface proteins - parasite coevolve with antibody response purpose of combina...

-cidal - killing -static - Having no motion or change 3 lines of defense - Barriers; inflammatory response; Immune response 3 types of reservoirs of infection - human, animal, nonliving 6 types of enzymes - oxidoreductase, transferase, hydrolase, lyase, isomerase, ligase Abiogenesis - spontaneous generation acquired immunity - Immunity that is present only after exposure and is highly specific. Aerobic bacteria - Bacteria that require oxygen for survival Agranulocytes - lymphocytes and m...

pseudo aeruginosa vs putida growth at 42C Characteristic of transudate noninflammatory response Why vaccinate for influenza Antigenic drift Foward 4+ 4+, Reverse 2+ 2+ Next step? (Warm sample, room temp incubation, ....) warm sample Foward 0 2+/mf, Reverse 4+ 0 Cause of discrepancy? Transfused with O cells or B subgroup? (Transfused with O cells more likely)

__ are an example of viruses with a segmented (-) RNA genome. - Orthomyxoviruses (-) strand: - Opposite of (+) strand and complementary. (+) strand: - Used or make mRNA Abortive polio: - - most common form (95% cases) - febrile illness (fever, malaise, drowsiness, headache, nausea, vomiting, sore throat) - complete recovery in several days - only recognized if observed in the blood Adsorption - When the virus attaches to the outside of the host cell. Doesn't require energy from the host...

NURS 5315 FINAL EXAM WITH 100%VERIFIED COMPLETE SOLUTIONS. NURS 5315 FINAL EXAM Anion gap 3-10 normal osmol gap is < 10 mOsm/kg elevated = etoh Dehydration triggers renin Cirrhosis increases oncotic pressure HF decreases it. Elevated serum osmolality pulls potassium Thiazide diuretics cause metabolic alkalosis due to aldosterone stimulating reabsorption of Na and bicarb in proximal tubule. ACIDOSIS = hyperkalemia Crohn’s active IL-4. IL-4 is associated with inflammation. Diapede...

NR503 Final Exam Questions With Verified And Updated Answers. A global epidemic of disease that spreads to more than one continent - answerPandemic the occurrence of disease in excess of what would normally be expected in a community, location, or time of year. May last a matter of days, weeks, or years - answerOutbreak The separation and restriction of people who were exposed to contagious disease to see whether they become ill - answerQuarantine seperation of sick people from those who ...

Once a virus has invaded a host cell, the host cell will most likely be destroyed as a result of _____. - Answer-the virus causing the host cell to burst All viruses contain - Answer-genetic material and a protein coat. Which statement regarding virus reproduction is true? - Answer-Viruses use the host cells' organelles to produce viral nucleic acids. Which statement regarding viruses is true? - Answer-All true: Viruses are enclosed in a protein shell. Each virus has a unique shape. Herp...

What is a function of bile?emulsification of fats Which chemical constituents in urine is the result of fatty acid catabolismAcetone What is mange?infestation of mites What is a feature of the capillary technique of fine needle biopsy?Cells are forced into the hub of the needle from the pressure of the puncture What is not commonly measured in liver function profile?Urea What best describers antigenic drift?A virus mutates so that preexisting antibodies can no longer bind and become use...

Which term is used to describe the process when a virus is engulfed by a cell in a vacuole or vesicle? correct answers Endocytosis How many viruses in the human body are pathogenic correct answers a few At minimum, all viruses are composed of correct answers proteins and nucleic acids Which term describes a nonliving microscopic agent? correct answers infectious particle How were viruses discovered correct answers using a filter The two principal processes by which viruses penetra...

BIO 520 Chapter 21 Reading Assignment Questions with 100% Correct Answers The upper respiratory tract includes which of the following structures? A: Nasal cavity B: Epiglottis C: Oral cavity D: Trachea E: Bronchioles F: Bronchi G: Alveoli H: Larynx I: Sinuses J Pharynx - answerA: Nasal cavity B: Epiglottis C: Oral cavity H: Larynx I: Sinuses J Pharynx Which four of the following are considered normal microbiota of the respiratory tract? A: Staphylococcus aureus B: Candida alb...