In the early 1900s a scientist hypothesized a link between DNA and the production of proteins in the cytoplasm. However, the fact that DNA could not be found outside the nucleus led scientists to believe that another substance was also involved in the synthesis of protein in the cytoplasm. In the 1940s scientists performed an experiment that ultimately identified the site of protein synthesis. They also identified the molecule responsible for transporting information form the nucleus to the site of protein synthesis. What was this newly identified molecule? A) A gene B) mRNA C) ATP D) Thymine

Ican't figure out these 2 questions, i am very bad at learning new languages! > _< 1. read and choose the correct verb conjugation to complete the sentence. la recepcionista de la escuela y yo somos amigos. nosotros a los padres de los estudiantes. a. contestáis b. contestamos c. contesto d. contesta 2. read and choose the option with the correct verb conjugations to complete the sentences. la vendedora rosa y el arquitecto jordi en buenos aires. soy juan y el presupuesto a rosa y jordi para comprar un chalé. a. viven; presentamos b. vivo; presento c. viven; presento d. vivo; presentamos