Threonine is a naturally occurring amino acid that has two stereogenic centers. the naturally occurring amino acid has the 2s, 3r configuration at its two stereogenic centers. draw the corresponding structure using the solid or dashed wedge bonds.

Explanation:

Amino acids are the organic compounds which contains both amine as well as carboxyl functional groups, with a side chain along to the molecule which is specific to each amino acid.

Threonine is a naturally occurring amino acid which has two stereogenic centers. The possible stereoisomers of theronine is 4. The naturally occurring amino acid has the 2S, 3R configuration at its two stereogenic centers.

The structure is shown in image below.

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explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)