The central dogma of molecular genetics states that the genetic information flows from

$\mathrm{DNA}\to \mathrm{RNA}\to \text{ Proteins }$

$\mathrm{DNA}\to \text{ Carbohydrates }\to \text{ Proteins }$

$\text{ Amino acids }\to \text{ Proteins }\to \text{ DNA }$

$\mathrm{DNA}\to \mathrm{RNA}\to \text{ Carbohydrates }$