All of the following are benefits of sequencing the human genome except knowing:
the exact sequence of DNA in an individual could allow pharmaceutical companies to design drugs for their exact genotype.
the discovery of the chemical makeup of DNA.
determining individuals who have a predisposing factor that could lead to future illness could allow for earlier treatment.
the improvement of sequencing technology that will allow the genomes of other species to be more readily sequenced.

The discovery of the chemical make up of the DNA

Explanation:

The DNA structure which consists of Phosphate, Sugar(Deoxyribose) and four protein(Adenine, Cytosine, Guanine, Thymine) was discovered in 1953 by James Watson, Francis Crick and aided by the work of biophysicists Rosalind Franklin and Maurice Wilkin. However DNA is made up of about 3 billion bases in different orders and sequence and the medical process of trying to get the sequence is called DNA sequencing.Each individual or organism has a distinct DNA sequence and certain groups of origanisms or individuals have distinct but similar sequences. This helps to identify and store vital information for medical use and for future reference. Drugs designed for organisms which has similar DNA sequence should be able to work on effectively on both of them.

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