Bioinformatics sequencing excercise. Sequencing the human genome started with how many base pairs? Where are all of those base pairs located? Sequencing that many base pairs was and still is not feasible. So what did scientists do to begin the international effort to sequence the genome? What two processes were used to sequence the human genome? What is the difference between the two processes? Sequencing of the genome helps to know the sequence of the genes and mapping is to identify location of genes and distance between genes on the chromosomes. Who was the director of the International Human Genome Sequencing Project? Why is this process call hierarchical clone by clone sequencing? The DNA is split up into fragments ready for sequencing. What is the Golden Tiling Path? Where does it fit into the process on the illustration of the hierarchical clone by clone sequencing process. What is the purpose of using BACs in the sequencing process? How long are the sequences carried by each BAC clone? What is un Solution 1) The Human Genome Project started in 1990 and aimed in sequencing all three billion base pairs. The genome was broken into 150,000 base pairs in length and then ligated and cloned into BAC 2) The nucleotides Adenine, Thymine, Guanine and cytosine are located in the DNA in the nucleus. Mitochondria and chloroplast also carry genetic material as plasmid hence they are self replicating. 3) The DNA was cut into fragments of 150,000 base pairs and ligated into BAC. They created a shortgun and assembled and sequenced it. 5)Francis Collins is the director of NHGRI 9) 150,000 base pairs are present in one BAC. it takes about 20,000 different BAC clones to contain the 3 billion pairs.