instruction:
In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
question:
Question: Friedel-Crafts alkylation reactions lead to products that:
Options: <1> They facilitate diazotization reactions. <2> They facilitate the reactions of formation of ethers. <3> Activate the aromatic ring against other substitutions. <4> They deactivate the aromatic ring against other substitutions. <5> None of the above.
answer:
3

question:
Question: Homosexual male of 30 years of age HIV (+) who participates as a volunteer in a help center for patients with AIDS. According to her clinical history she received diphtheria toxoid (Td) 6 years ago, the MMR vaccine in childhood and adolescence, and hepatitis B three years ago. He is currently asymptomatic with a CD4 count greater than 200 cls / l. What vaccines should we recommend?
Options: <1> Seasonal influenza, pneumococcal, tetravalent meningitis and hepatitis A. <2> Seasonal flu, Td, pneumococcal and tetravalent meningitis. <3> Templavalent meningitis, pneumococcal and seasonal influenza. <4> Td, tetravalent, pneumococcal meningitis. <5> Viral triple, seasonal flu, pneumococcal.
answer:
1

question:
Question: It is characteristic of the alpha helix:
Options: <1> Present 3.6 amino acid residues per turn. <2> Be levorotatory <3> Be stabilized by intrachain disulfide bridges. <4> Present ionic bonds between amino and ketone groups loaded with peptide bonds. <5> Have the side chains of the amino acids inwards.
answer:
1