Para la reacción de PCR (volumen de 25 µL) es necesario emplear 70 ng de ADN. Qué volumen de ADN molde (concentración del ADN 140 ng/µL) tiene que tomar para agregar al tubo de PCR?

Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

Which of the following is an example of a tissue on the digestive system a.the stomach b.smooth muscle that lines the stomach c.nerve cells in the stomach d. enzyme molecules in the stomach

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time