Elige el verbo que esté conjugado correctamente en el pretérito. Todavía no (comprar) [1] el libro que me recomendaste. ¿A qué hora (venir/tú) [2] ayer al trabajo? No me gusta llegar tarde, pero esta semana (llegar / yo) [3] tarde a todas mis clases. Ayer tú me (pedir) [4] que compre las bebidas y ¡mira!, ¡las compré! ¿Cuántas veces ellos nos (prestar) [5] dinero y nunca nos (decir) [6] que en realidad no podían hacerlo? ¿Recuerdas la comida que Bertina (hacer) [7] para mi cumpleaños? Quiero aprender a cocinarla. (Yo: venir) [8] a verte porque quiero hablar contigo. Nosotros (estar) [9] en Valencia hace unos 5 años. ¿Por dónde (andar) [10] ustedes el mes pasado? Los quisimos visitar pero nunca los encontramos.
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Both maternal and paternal gene products are expressed in th…
Both maternal and paternal gene products are expressed in the same cells because MHC alleles are co-dominantly expressed.
Not all T cell complete development and maturation. A number…
Not all T cell complete development and maturation. A number of T cells end up dying through a mechanism described as death by neglect and governed by the nature of interaction with MHC molecules. Which one of the following levels of T cells-MHC interactions leads to death by neglect?
Which one of the MHC molecules is made of α chains and β2 mi…
Which one of the MHC molecules is made of α chains and β2 microglobulin?
What is the sequence of immunoglobulin heavy and light chain…
What is the sequence of immunoglobulin heavy and light chains rearrangement?
In order to test the efficacy of their new vaccine, a team o…
In order to test the efficacy of their new vaccine, a team of investigators decides to immunize different strains of mice. The graduate student in charge of immunization decides to check the strains available and was informed by the lab animal technician that the vivarium has extra RAG1/2 deficient mice that will be euthanized if not used. The student laughed and responded you can keep your RAG1/2 KO mice because:
The genes of major histocompatibility complex (MHC) encode p…
The genes of major histocompatibility complex (MHC) encode polymorphic and nonpolymorphic genes. Which one of the following are encoded by nonpolymorphic genes?
Which of the following is characteristic of muscle spindles?
Which of the following is characteristic of muscle spindles?
Where is this tissue found in the body?
Where is this tissue found in the body?
Which type of sensory receptor in the musculoskeletal system…
Which type of sensory receptor in the musculoskeletal system is found in ligaments and capsules and is stimulated by mechanical distortion?