Deoxyribonucleic acid or DNA is a molecule that contains the instructions an organism needs to develop, live and reproduce. These instructions are found inside every cell, and are passed down from parents to their children.ach nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
Hello, Dryness of scalp can be due to hormonal imbalance, poor health, poor hygiene, allergic hypersensitivity, lack of rest, emotional stress, excessive consumption of sugar, fat or starch, heredity predisposition and medical causes like eczema, atopic dermatitis or seborrheic dermatitis.
Eczema affects the skin in flare-ups. Your baby's skin may have dry and itchy patches of skin most of the time, but during flare-ups, these areas worsen and become inflamed. This happens as his immune systems overreacts to substances he's allergic to (allergens).He may then need more intensive treatment.czema is a dry, itchy skin condition that affects up to one in five children. It usually appears for the first time before your child is two years old. The good news is that most children who have eczema will grow out of the condition by the time they are in their teens (BAD 2013, NICE 2007) .