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: The R-bands of human metaphase chromosomes: 
 Options:  <1> They contain DNA rich in AT pairs. <2> They have high gene density. <3> They contain poor DNA in GC pairs. <4> They replicate at the end of phase S. <5> They have low gene density.
2

Question: Which of the following anti-infectives is a reversible inhibitor of monoamine oxidase that can lead to interactions with antidepressants that increase serotonin? 
 Options:  <1> Neomycin. <2> Teicoplanin <3> Linezolid. <4> Clindamycin <5> Meropenem.
3

Question: Indicate the correct option regarding the defined daily dose of a medicine: 
 Options:  <1> Corresponds to the maximum daily dose. <2> Corresponds to the initial dose of a treatment. <3> Corresponds to the maintenance dose for the indication that requires a lower dose. <4> Corresponds to the average daily maintenance dose. <5> Corresponds to the initial dose for the main indication.

4