What Are Genes?

Genes, are basic unit of life which provide the directions for the body to function. They are building on base pair of Deoxyribonucleic acid (DNA) and determine an individual’s inherited traits. For example, some genes are responsible for the colour of the eyes while others are responsible for the height of an individual.

Genes, being the building blocks of life, are also the basic units of heredity in living organisms. It is the means by which all organisms pass on traits and attributes to their offspring.
As genes contain the information written in the human hereditary material (DNA), they are of utmost importance for the growth and development of an individual. They located in 23 pairs of human chromosomes. Chromosomes appear in pairs; one comes from the mother and the other one from the father. Thus, every person has two copies of a gene. One copy is called an allele. The two alleles can be identical or different.