DNA. complementary DNA (cDNA), copy DNA DNA transcribed from a specific RNA through the action of the enzyme reverse transcriptase. mitochondrial DNA (mtDNA) the DNA of the mitochondrial chromosome, existing in several thousand copies per cell and inherited exclusively from the mother.
Castor Oil. Castor oil is another good treatment for dry and chapped lips. Simply apply castor oil to your lips several times a day. You can also make a soothing treatment using one teaspoon of castor oil, one teaspoon of glycerin and a few drops of fresh lemon juice.
Olive oil contains healthy fats that can moisturize your lips as well as skin very well. It is also rich in Vitamin E, yet another very good nutrient for skin. Due to its antioxidant and anti-inflammatory properties, olive oil makes a good remedy for your chapped lips.