2006-08-06 09:38:19 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Zoology
Snakes are reptiles and mammals are evolved from reptiles. From that point of view, there could theoretically be some homology in the sequences of human and snake DNA.
2006-08-06 13:35:49 · answer #1 · answered by nkmy83@yahoo.com 3 · 0⤊ 1⤋
First of all. We are not developed from snakes, so we can't have any snake DNA. Snakes developed later, after we were separated from the lizards.
We could have primitive DNA left in our junk genes, but I think it is unlikely. If a gene in the used DNA mutates, the animal will in most cases die, but if the junk DNA is mutated, the animal will survive and spread the mutation.
2006-08-06 17:10:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋
No, we have mostly viruses' junk genes, those have been incorporated to our genome via infection-disease-selection cycle. We share genetic materials mostly with our mammal ancestors, and snakes are not. Snakes and humans have a common ancestor born well before dinosaurs age, last common ancestor goes back to permian times.
2006-08-07 02:20:10 · answer #3 · answered by pogonoforo 6 · 0⤊ 0⤋
nope. But there may be similarity of sequences... Mostly human junk genes (introns) have transposons. check out wikipedia for info on transposons
2006-08-07 13:02:59 · answer #4 · answered by Angel blue 3 · 0⤊ 0⤋