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Describe how RecABCD and RuvABC function to mediate homologous recombination.

Primary radiation is __________.

During gait, what happens as the meta-tarso-phalangeal joints go in extension?

List and describe the different layers of a mature spore.

What types of molecules are kept out of a mature spore by its outer layers? How are they kept out and why? What types of molecules are allowed into a mature spore by its outer layers? How are they allowed in and why?

What is the job of Mfd in repairing DNA damage? What repair system does it recruit and what is its job? 

C. El pretérito: Los mensajes de texto. Alexander is texting with his mom about their day. First, read over their conversation below. Then, determine which verb, from the options provided, is missing from each sentence. Lastly, type the conjugated the verb in the preterittense in the space provided. (2 pts. each: 1 pt. for correct verb choice, 1 pt. for correct conjugation; 12 pts. total)   MODELO: ¡Hola, mamá! ¿Recibiste [almorzar / hablar / recibir] el mensaje que te mandé ayer?   Mamá: Hola, querido. ¿Cómo estás? ¿Ya (already) (1) llegó [hablar / invitar / llegar] la sartén que te compré por Amazon? Alexander: Sí, mamá. ¡Gracias! Ya (yo) les (2) preparé [preparar / repetir / sentirse] varios platos a mis amigos. Mamá: Excelente, mi corazón. ¿Qué les (3) cocinaste [abrir / cocinar / medir] tú a tus amigos? Alexander: Pues, ayer (yo) (4) freí [freír / pelar / sacar] pollo. Estuvo riquísimo. ¿Y tú? ¿Cómo estás, mami? Mamá: Bien. Esta mañana tu papá y yo (5) leímos [dormir / leer / pagar] el periódico…y por la tarde (6) (yo) almorcé [almorzar / echar / pagar] con tu tía…Bueno, cielo, tengo que irme, pero hablamos pronto.  

What kinds of bacterial cells can do sporulation? Describe the general steps of sporulation. What is happening structurally to the cell?

During the process of attenuation, the x-ray photon may interact with:

Which two Meta solutions enable businesses to communicate privately and instantly with a customer? (Choose two)