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Mrs. Smith has O-negative blood, and she received 2 units of O-negative blood 8 months ago for a chronic gastrointestinal (GI) bleed. She does not have a history of any other prior transfusions. She now needs 3 more blood units for the same condition. Her plasma was cross-matched with the red cells from two O-negative donors. One unit is compatible, but one is not. Further tests reveal she developed an anti-C antibody. Where did this antibody come from, and why was only of the units incompatible?
When macrophages encounter invading cells, they release interleukin-1, which is carried to the brain by the circulatory system.
Can you deduce what action this drug has at a synapse to increase the amount of serotonin present in the synaptic cleft? Another type of antidepressant inhibits the enzymes that naturally break down serotonin at the synaptic cleft. Can you explain ..
Why has vaccine development for chagas disease-not been successful as a viral or bacterial disease-what is a biological reason-what is a geographical reason-funding reason.
Identify major historical developments in world cultures from the Renaissance to the contemporary period. Use technology and information resources to research issues in the study of world cultures.
What changes are needed to construct a semi-global alignment. The global alignment works pretty well on sequences that are nearly the same length.
Indicate the direction with the sign of your answer.) (a) What is the car's average acceleration (in SI units; meter-kilogram-second)?
Why there are multiple origins of replication on eukaryotic DNA? a. To establish multiple copies of DNA simultaneously. b None of these is correct. c. To minimize errors in DNA replication. d. To reduce the time necessary for DNA replication
Discuss the theories of putative virus evolution and Describe and explain the structure , genomic organization , and infection cycle bacteriophages
The first of these organophosphorus insecticides to be produced was tetraethyl pyrophosphate, TEPP, which is 33.11% carbon, 6.95% hydrogen, 38.59% oxygen, and 21.35% phosphorus. It has a molecular mass of 290.190. What is the molecular formula for..
Fluoxetine can also inhibit ATP synthase. Why might long-term use of fluoxetine be a concern?
1. Describe what would happen if all of your skeletal muscles contracted at the same time.
in 1990, the first human gene therapy experiment on a patient with adenosine deaminase deficiency was done. Patients who are homozygous for a defective gene for this enzyme have defective immune systems and risk death from diseases as simple as a ..
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