In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

Question: The aldol condensation gives rise to: 
 Options:  <0> Α, β-unsaturated amides. <1> Saturated amides. <2> Α, β-unsaturated carbonyl compounds. <3> Chiral compounds. <4> Β, γ-unsaturated carbonyl compounds.
chemistry

Question: The binding of O2 to hemoglobin: 
 Options:  <0> Follow a hyperbolic kinetics. <1> It favors the transition from Fe2 + to Fe3 + in the heme group of the protein. <2> Induces the deprotonation of the protein. <3> It is facilitated in the presence of 2,3bisphosphoglycerate. <4> It is carried out through a covalent interaction with Fe3 +.
pharmacology

Question: Adolescent of 16 years who consults for primary amenorrhea. He does not have medical-surgical history of interest. On physical examination, we found female secondary sex characteristics, female external genitalia, with stage III-IV breast development, scanty pubic and axillary hair. He presents a stature in the 90th percentile for his age. The plain radiograph reveals a bone age of 15.8 years. The analytical study reveals an estradiol of 50 pg / ml, and high gonadotropins. Which of the following clinical entities would be compatible with the diagnosis? 
 Options:  <0> Klinefelter syndrome. <1> Kallman syndrome. <2> Constitutional growth retardation. <3> Congenital adrenal hyperplasia. <4> Complete androgenic insensitivity syndrome.

medicine