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If you truly want to know...
Posted on: January 16, 2019 at 15:41:50 CT
Badird MU
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First, genetics is the study of DNA, specifically genes that code for RNA, which codes for a protein. That protein has a function. It could carry ions to synapses, it could help determine the structure of certain parts of the brain, it doesnt matter. It has a very precise function. Each gene is, on average, about 8000 base pairs, but we dont even know how many genes there are in the human genome. 25,000 is a current estimate. 8000 DNA links are read precisely to make one RNA molecule. That RNA molecule is read in every 3 bases to determine which amino acid to attach next. Different mutations would cause different amino acids to be attached, and therefore would impact the functionality of the final protein.
Mutations in DNA cause mutations in RNA, which cause mutations in the protein, which changes the functionality of that protein. Some mutations are beneficial. Most, as you can imagine are not. Some kill the individual. This is the basis for evolution (another topic altogether).
Now, if the human genome has 3 billion nucleotide bases (DNA links), and we have 25,000 known genes, how different can we really be, GENETICALLY, from one another while still having function of our 25000 genes?
Populations have different genetics. The Swedes have different markers than the English, and the Irish, and the Germans, etc. But the places they test your DNA lineage is in highly conserved markers, not necessarily in genes known to code.
The short answer is, we dont know all of the genes that control brain activity. We arent there yet. But as of now, we dont have any data suggesting that a mutation in a white person's Microcephalin (MCPH1) gene, which regulates brain size, is any different than a black person's version of that same gene. In all likelihood, a mutation to that gene would probably kill the individual.
Mutations in DNA cause mutations in RNA, which cause mutations in the protein, which changes the functionality of that protein. Some mutations are beneficial. Most, as you can imagine are not. Some kill the individual. This is the basis for evolution (another topic altogether).
Now, if the human genome has 3 billion nucleotide bases (DNA links), and we have 25,000 known genes, how different can we really be, GENETICALLY, from one another while still having function of our 25000 genes?
Populations have different genetics. The Swedes have different markers than the English, and the Irish, and the Germans, etc. But the places they test your DNA lineage is in highly conserved markers, not necessarily in genes known to code.
The short answer is, we dont know all of the genes that control brain activity. We arent there yet. But as of now, we dont have any data suggesting that a mutation in a white person's Microcephalin (MCPH1) gene, which regulates brain size, is any different than a black person's version of that same gene. In all likelihood, a mutation to that gene would probably kill the individual.
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If you truly want to know... - Badird MU - 1/16 15:41:50