What biological macromolecule is made up of monomers like the one shown below?
a. carbohydrate
b. nucleic acid
c. fat
d. protein

B

Explanation:

A nucleic acid is composed of a pentose sugar that has a nitrogenous base at C2 and a phosphate molecule at C5. To form DNA, nucleic acid monomers are joined together in phospho-diester bonds. The phosphate at C5 of one monomer form a bond with the C1 of the next monomer.

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

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.