Each chromosome has between 1,000 and 10,000 genes The 'Words' are grouped, not into 'Sentences', but into genes which can be anything from a few dozen to a few thousand 'Words' long. Each chromosome has between one and ten thousand genes, strung along its length. The coded information in a gene is decoded by the system inside the cell, which builds proteins. There are many thousands of different types of proteins inside cells. Each individual gene codes for one specific type of protein molecule.
Every protein has a particular function.
The reason it can carry out that function is because of the protein's structure - which is determined by the coded information in the gene. Essentially, all the functions of cells are carried out by proteins. Since our bodies are made up of cells, this means that all the functions of our bodies are also carried out by proteins at the end of the day. Now that the Human Genome Project has determined the sequence of bases along all the chromosomes in human cells, we know the genetic code of every human gene. This means that we can now work out the structure of those genes that are involved in the control of cell division, involved in cell suicide, involved in tumour cell spread and all other cell functions that are involved in cancer.