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Does the human genome project DNA sequencing measure the sequence of all bases or genes?
Well, HGP is a human genome project, and its main task is human DNA sequencing: it mainly establishes four maps, namely genetic map, gene map, physical map and sequence map. If you mean all the bases, yes. Let me start with a concept: genome, which is generally defined as the genome of all chromosomes in haploid cells or the genome of all genes in haploid cells. However, the results of genome sequencing show that the gene coding sequence only accounts for a small part of the whole genome sequence. So genome should refer to all DNA molecules in haploid cells, including coding sequences and non-coding sequences. More precisely, the nuclear genome is all the DNA molecules in the haploid nucleus. BP (Basic Pairs) base pairs are distinguished by ATCG to form DNA, while chromosomes (such as humans) are extremely long DNA chains with tens of thousands of bases (just say a little more). However, the proportion of genes (effective genetic components, that is, genes that will affect traits) is very low, which was discovered by sequencing. In other words, those places that are not expressed or translated occupy more places (note: don't confuse them, not the intron sequence of the gene), but this doesn't mean that they have no influence, just that scientists don't know yet. In a word, it should be understood that this project is a complete BP sequencing of 24 (22+x+y) human. But the completion of the sequence does not mean the completion of the project, mainly because of many genetic problems such as which real gene sequences are marked on these sequences, the distance linkage between genes and so on. Moreover, human beings also study those genes whose functions are unknown through the discovery of these sequences. So, in fact, many human genes have been labeled, but there is still no clear understanding of their functions!