In this task, you are given a sentence in the Spanish language. Your task is to translate the Spanish sentence into the English language.

[Q]: Las células del nodo sinusal presentan
[A]: The cells of the sinus node present


[Q]: En la valoración de una base fuerte con un ácido fuerte el pH del punto de equivalencia
[A]: In the valuation of a strong base with a strong acid the pH of the equivalence point


[Q]: Para analizar los sitios de unión de proteínas al DNA se utiliza la técnica de
[A]:
To analyze the binding sites of proteins to DNA, the technique of