In 2003, a scientific advancement occurred that, almost certainly, will revolutionize medical health. what was this achievement? the first animal was cloned human dna was completely mapped the first anti-cancer drug was created the first gene was spliced

Option). human DNA was completely mapped.

Explanation:

The HGP (Human Genome Project) was a scientific research project that was started in 1990 and completed in 2003. The main goal of HGP was to nucleotide sequence of human DNA, and mapping and identification of all the genes present in human genome.

It took total 13 years to identify complete human DNA sequence. Thus, the correct answer is option). human DNA was completely mapped.