Methanotrophs,in contrast to non-methanotrophic methylotrophs,may contain this enzyme.

Question

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Methanotrophs are bacteria that are capable of utilizing methane as their sole source of energy and carbon. Methane monooxygenase (MMO) is a key enzyme in the oxidation of methane to methanol by methanotrophs. It is not present in non-methanotrophic methylotrophs, which use other compounds like methanol, formaldehyde, and methylamine as a source of carbon and energy. Therefore, option C (methane monooxygenase) is the best choice.

Methanotrophs,in Contrast to Non-Methanotrophic Methylotrophs,may Contain This Enzyme