The ____________________ at the Ends of the Countergear Control the Amount

question 21

Short Answer

The ____________________ at the ends of the countergear control the amount of end clearance.

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Definitions:

Fischer Projection

A two-dimensional representation of a molecule's structure to display chirality by projecting asymmetric carbon atoms.

(2S,3R)-2,3-Dihydroxybutanoic Acid

A specific stereochemical form of dihydroxybutanoic acid, an organic compound with two hydroxyl groups located at the second and third carbons.

Erythro

A descriptor in stereochemistry denoting molecules with similar substituents on the same side in a Fisher projection.

Threo

Refers to a specific stereochemical configuration in certain molecules where two substituents are on opposite sides of a molecule, often used in the context of sugar chemistry.