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: GnRH (ganodorelin) is a hypothalamic decapeptide that is secreted in a pulsatile manner. Lately a series of analogues have been developed that: 
 Options:  <1> All of them inhibit prolonged secretion of LH and FSH. <2> All of them are GnRH receptor agonists. <3> Goserelin and buserelin are antagonists of the GnRH receptor. <4> The prolonged treatment gives rise to a typical symptomatology of an excess of gonadal steroids. <5> GnRH agonists are contraindicated in prostate and breast cancer.
1

Question: In relation to the bacterial growth in liquid medium not renewed, which of the following statements is correct? 
 Options:  <1> The generation time is a constant parameter. <2> The phase of exponential growth is perpetual. <3> There is a direct relationship between the specific growth rate and the generation time. <4> There is an inverse relationship between the specific growth rate and the generation time. <5> The generation time and the specific growth rate are not related.
4

Question: To calculate the number of different genotypes in any allelic series the formula is applied: 
 Options:  <1> (n-1) / 2. <2> n x (n + 1) / 2. <3> n x (n-1) / 2. <4> (n-1) x (n + 1) / 2. <5> (2n-1) / 2.

2