Usted desea mirar la expresión en el huésped de proteína que ayuda a incrementar la
replicación del virus. Esta proteína es muy sensible e inestable(no se puede purificar
extraer), ¿cómo haría para cuantificarla?

nucleus

would be most reasonable answer tbh

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.