Question

the initial discovery concerning the bacteria in mono lake suggested that which element could be used as a substitute for phosphorus (p) in its macromolecules? a. carbon b. sulfur c. nitrogen d. arsenic

Explanation:

In 2010, a study suggested that a bacterium from Mono Lake could use arsenic instead of phosphorus in its macromolecules. Phosphorus and arsenic are in the same group (Group 15) of the periodic table. Elements in the same group have similar chemical properties. This led to the initial discovery that arsenic might substitute for phosphorus.

Answer:

D. arsenic