B-cell receptor consist of membrane-bound immunoglobulin and a small heterodimer protein required for signaling. Which of the following is the heterodimer protein?

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#Question id: 12700

#Unit 7. System Physiology – Animal

A young man is found comatose, having taking an unknown number of sleeping pills an unknown time before. An arterial blood sample yields the following values: pH = 7.02, HCO3− = 14 mEq/L, and PCO2 = 68 mm Hg. This patient’s acid–base status is most accurately described as

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#Question id: 381

#Unit 1. Molecules and their Interaction Relevant to Biology

Consider an acetate buffer, initially at the same pH as its pKa (4.76). When sodium hydroxide (NaOH) is mixed with this buffer, the:

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#Question id: 1728

#Unit 4. Cell Communication and Cell Signaling

Which of the following is characteristic of B- but not T-cells?

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#Question id: 21133

#Unit 12. Applied Biology

Polyhydroxyalknoates (PHAs) are usually and industrially produced by

a) When the microbes are cultured with excess nutrient concentrations

b) When the microbes are cultured with nutrient-limiting concentrations

c) microbe-Actinobacillus succinogenes

d) microbe-Alcaligenes eutrophus

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#Question id: 24645

#Unit 10. Ecological Principles

Choose the correct decreasing order for the Variety of Macronutrients that involves into the Limitation of Plant Growth?