In humans, apolipoprotein B48 is found on: A) Chylomicrons. OB) HDL. OC) IDL.
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- Viagra works on which intra-cellular signaling pathway? a)PLC, DAG, PKC b)RTK, RAS, MAPK c)GPCR, PKB, calmodulin d)Acetylcholine, Nitric Oxide, cGMP e)GPCR, cAMP, PKAWhich of the following is not true for a natural killer cell? A) do not undergo rearrangement of receptor genes B) develop in the thymus c) stimulated (activated) by IFN-a and other cytokines D) lack of NK cells can lead to severe viral infections Question 6 Represents innate immune system receptors A Randomly arranged B) Germline encoded c) cross-reactive D) CLP encoded is determined by specific carbohydrate groups60. During an experiment, an inbred mouse strain is developed that has a homozygous mutation for the gene encoding the J chain. Immunoglobulins produced by these mice are most likely to have alterations in which of the following biologic properties? 00 A) Ability to pass across the placenta B) Attachment to Fc receptors on eosinophils C) Neutralization of toxins D) Opsonization of encapsulated bacteria E) Secretion across mucosal epithelial cells
- 1. Which of the following white blood cells would you expect to find in high numbers during a helminth infection but not during a bacterial infection? Hint: don't forget that helminths are eukaryotes.... a) Macrophages b) Mast Cells c) Neutrophils d) Eosinophil 2.Which of the following properly describe Major Histocompatability Complex (MHC)? a) Directed selection creates complexity and differences between cells in the same individual b) Inheritance makes it identical for all siblings that share the same parents c) Natural selection has made it identical for all members of the same species d)Random selection creates variety between individual humans. Give the answer of both question.What is meant by MAOA gene?answer both to get a like or don't attempt.Thanks.
- Give typing answer with explanation and conclusion to all partsWhich of the following is the most likely future outcome for a thymocyte just entering the thymus? A) activation by a B-cell B) apoptosis C) differentiation into a Tc cell D) migration to a lymph node E) formation of a granulomaWhat are the cellular defense strategies against oxidative damage by ROS?
- 13) Which of the following best describes the mechanism of an antiplatelet medication? A) Inhibition of platelet aggregation B) Blocking of sodium channels C) Inhibition of the inflammatory response D) Inhibition of factor X conversionWhat is the source of Interleukin 2?Moderna and Pfizer vaccines for COVID-19 use mRNA to the Spike protein combined with lipids. Which of the following is/are advantages of this type of vaccine compared to an inactivated virus vaccine? Select ALL correct answers. a) The vaccine is more stable for transport. b) The vaccine does not contain the virus so it cannot give you COVID-19. c) The vaccine can be rapidly produced in a slightly different form to protect from variants of SARS-CoV-2. d) The vaccine does not need a booster.