A50-year-old male reports he is experiencing issues related to his sexual performance. his blood levels are normal except for a high glucose level. his semen analysis is within normal limits. which disorder is likely responsible for his condition

The correct answer is erectile dysfunction.

Explanation:

Erectile dysfunction, also known as impotence, refers to a condition in which the person loses the tendency to sustain an erection for long enough to have sex. There are many reasons for erectile dysfunction, however, one of the most common reasons is high sugar level or diabetes.  

It has been suggested that about 35 to 75 percent of men with diabetes will go on to develop the condition. Diabetes results in erectile dysfunction as it can destruct the supply of blood to the penis and the nerves, which monitor an erection.  

In case, when the levels of sugar in the blood is too high, less production of nitric oxide takes place. This signifies that not an adequate amount of blood flow into the penis to maintain an erection.  

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).