Which of the following would most reliably suggest that a genomic sequence is functionally important?

a. The presence of a long open reading frame in the sequence
b. Multispecies conservation of the sequence
c. Low copy number variation of the sequence
d. The presence of active chromatin marks over the sequence

The answer is b. Multispecies conservation of the sequence

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.