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: When centrifuging human peripheral blood in a density gradient in Ficoll: 
 Options:  <1> The mononuclear cells float on the Ficoll. <2> The lymphocytes remain in the background. <3> The erythrocytes float on the Ficoll. <4> The granulocytes float on the Ficoll. <5> The monocytes remain in the background.
1

Question: How many DNA molecules does a diploid cell contain 2n = 46 during the G2 phase ?: 
 Options:  <1> 92 <2> 2. 3. <3> 46 <4> 44 <5> twenty-one.
1

Question: Regarding COPD, which one is FALSE? 
 Options:  <1> Smoking is the most important factor in the development of COPD. <2> Contrary to asthma, there is no inflammatory component. <3> The genetic factor to develop better documented COPD is the deficit of alpha1 antitrypsin. <4> Acropachies are not characteristic of COPD and their presence should suggest associated bronchiectasis or bronchopulmonary carcinoma. <5> Spirometrically, obstruction is detected by a FEV1 / FVC ratio of less than 0.70.

2

