El ADN, explicación fácil

Understanding DNA and Its Role in Genetics

The Structure of Life

• The human body, like that of any living organism, is composed of organs made up of tissues, which are in turn formed by billions of cells.

• Eukaryotic cells contain a defined nucleus where structures called chromosomes reside; humans have 23 pairs of chromosomes.

• Each chromosome contains DNA (deoxyribonucleic acid), structured as a double helix made from nucleotides (a mix of sugar and phosphate).

Genetic Information Storage

• Within the DNA's nitrogenous bases lies all genetic information, influencing traits such as hair color and physiological functions like breathing.

• This genetic information is hereditary, passed from parents to offspring through the replication process facilitated by enzymes.

Replication and Mutation

• During DNA replication, an enzyme breaks bonds between nitrogenous bases, leading to the formation of two identical copies.