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: Placental lactogen has equivalent effects to:
Options: <1> GH <2> Insulin. <3> Oxytocin <4> Estrogens <5> FSH.
1

Question: How many palindromic sequences exist on the human Y chromosome that allow Y-Y recombination ?:
Options: <1> 8 <2> 6 <3> Four. <4> 10 <5> 12
1

Question: In the technique of analysis by injection in flow:
Options: <1> A relatively large volume of sample is injected into the system, obtaining signals at steady state. <2> A small volume of sample whose integrity is maintained by segmentation with air bubbles is introduced. <3> The sample maintains its integrity throughout the process as it is available in separate containers. <4> The responses obtained have a peak shape whose height depends on the concentration of the sample. <5> The main difficulty lies in the slowness of the measures.
4