Gene Glow - Skin

How does your DNA affect you?


Your genotypic pattern sets you apart from other people. Genes are responsible for the entire make-up of your body. Your physical appearance (phenotype) is the result of the combination of genes that you inherit from your parents (genotype). From your eye color, the shape of your face, cleft in your chin, size of your nose, curl in your hair to your behavioural patterns, you probably share a number of characteristics with your parents. Although you share some of these similarities you differ from them and other people owing to the small variations in your genetic makeup. In addition to these variations that influence your individual characteristics some of these gene variants may impact your health condition and are termed as “polymorphisms”. The human genome sequence is 99.6% identical in all people.

Genetic Information


Genetic information is stored within the DNA (Deoxyribonucleic acid), a double stranded helical molecule tightly packed into coiled thread like structures called chromosomes. Chromosomes are lodged inside the nucleus of every cell in the body and each cell has 23 pairs of chromosomes with one chromosome of a pair inherited from the mother and the other from the father. Genes are specific sections of the DNA that have definite functions, which is why they are considered as the functional unit of heredity.

What is Skin?

What are the various layers of the Skin?

The skin is made up of 3 layers, namely:

} Epidermis, the outermost layer of our skin, renders protection and is responsible for the depth of skin colour owing to its melanin content

} Dermis, found beneath the epidermis, provides strength and support, and maintains skin firmness due to its collagen and elsatin content

} Hypodermis, the deepest layer found beneath the dermis is composed of fat cells, a major constituent, providing insulation to maintain the body temperature. The sebaceous glands and sweat glands present in this layer prevent dryness and render protection against infections.