Which correctly describes the relationship between the molecules? a) TCR recognizes both the peptide and the...
ANSWER ALL THE QUESTIONS FULLY AND CORRECTLY!!! 1) A patient has inherited two defective genes for TAP2 (remember the case study from before) Which of the following are true? (circle all that apply): - The patient will have a scarcity of CD4+ T helper cells -MHC class I molecules will not be expressed to any extent on the patient's cells -MHC class II molecules will be reduced in expression - The patient will have an impaired ability to fight viral...
ANSWER ALL QUESTIONS FULLY AND CORRECTLY 5-1 T cells recognize antigen when the antigen a. forms a complex with membrane-bound MHC molecules on another host-derived cell b. is internalized by T cells via phagocytosis and subsequently binds to T-cell receptors in the endoplasmic reticulum c. is presented on the surface of a B cell on membrane-bound immunoglobulins d. forms a complex with membrane-bound MHC molecules on the T cell e. bears epitopes derived from proteins, carbohydrates, and lipids. 5-2 a....
Which of the following statements correctly describes the relationship between the resistance of a resistor and its physical volume? Select one: a. Resistance always decreases with increasing volume b. Resistance always increases with increasing volume c. Resistance always remains constant with increasing volume d. Resistance may decrease or increase depending on whether the area or length is increasing respectively A carbon composition variable resistor may become electrically noisy due to: Select one: a. High humidity b. Low humidity c. Mechanical...
Could you help with any of these ? and provide an explanation so I'll understand? thank you so much Circle all that apply 1) A patient has inherited two defective genes for TAP2 (remember the case study from before) Which of the following are true? (circle all that apply): - The patient will have a scarcity of CD4+ T helper cells -MHC class I molecules will not be expressed to any extent on the patient's cells -MHC class II molecules...
Which one of these best describes the relationship between bondholders and stockholders at a time when it appears the firm may be facing increased financial distress? Multiple Choice A.) Stockholders have an incentive to underinvest in new projects to the detriment of bondholders. B.) Both parties tend to work together for the common good of the firm. C.) Both bondholders and stockholders will encourage the firm to take on new high risk projects. D.) Bondholders will tend to lower their...
Which of the following statements correctly describes the relationship between the size of the deadweight loss and the amount of tax revenue as the size of a tax increases from a small tax to a medium tax and finally to a large tax? The size of the deadweight loss increases, but the tax revenue first increases, then decreases. Both the size of the deadweight loss and tax revenue increase. The size of the deadweight loss increases, but the tax revenue...
Question 1 (1 point) Vasoconstriction occurs when epinephrine (adrenaline) binds to the a-adrenergic receptor on vascular smooth muscle cells. One way to treat high blood pressure is to administer competitive inhibitors that bind to this receptor. The Kd for binding of epinephrine to this receptor is ~UM. Based on the measured affinity (Kd) of the following drugs for the a-adrenergic receptor, which might be good candidates for high blood pressure medication? Drug A: Kd = 0.6 M; Drug B: Kd...
11. Which of the following statements correctly describes the relationship between the interest rate and money demand? A. When the interest rate increases, money demand increases because interest-paying bonds become more attractive than the money balance. B. When the interest rate increases, money demand increases because interest-paying bonds become less attractive than the money balance. c. When the interest rate increases, money demand decreases because interest-paying bonds become more attractive than the money balance. D. When the interest rate increases,...
Which of the following describes a fundamental difference between commensalism and mutualism? Select one: a. Mutualism benefits both parties, but commensalism benefits one party. b. Mutualism is not obligate, but commensalism is obligate. c. Mutualism benefits both parties, but commensalism benefits neither party. d. Mutualism is obligate, but commensalism is not obligate. Question 2 The climax community is a stable and predictable early stage of succession. True False Question 3 Beavers build dams that make ponds in streams, thus creating...
immunology practing samples and not sure if my answers correct. 1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...