Humans and Chimps share a 9,826 nucleotides out of 10,000 in sequences. Therefore, the Human and Chimp nucleotide difference out of 10,000 is 174. Gorillas and my new species differ by only 165 nucleotides. A) K=(-3/4)In(1-(4(0.0174)/3))=0.0176050171. L=K/2t=0.0176050171/2(6600000)=1.33x10^-9. B) K=(-3/4)In(1-(4(0.0165)/3))=0.0166842067. t=K/2L=0.0166842067. That is 6.2x10^6 years ago. By using the molecular clock method to estimate the two species, we can say that the species most likely diverged nearly 6 million years ago. C) I am uncertain what to write here but I assume future molecular clock calculations would be done... Comparing all other species known to the new species. Is any of this correct?
C)
By doingthe extra work, the evolutionary lineages between the these primate species and humans can be known and the divergence can be established by constucting the phylogenetic tree. The evolutionary relationship between the new species and other primates can be known and the relation between the new species with humans along with other primates can be clearly observed.
The molecular clock calculations are Ok.
Humans and Chimps share a 9,826 nucleotides out of 10,000 in sequences. Therefore, the Human and...
You are studying the source of new virus that has recently infected humans. You suspect that the virus was transferred from other primates (they exhibit a similar infection), specifically chimpanzees, gorillas, or orangutans. You sample blood from several infected humans and sequence some viral genes. You then build a phylogenetic tree with the human sequences and all the known strains from each primate. Draw a hypothetical phylogenetic tree that would suggest that the virus came from gorillas, and this transfer...
Until recently, there were two competing theories about the origin of our species- "modern Homo sapiens". The first (single African origin) is that all modern humans descended from a recent ancestor in Africa, less than 200,000 years ago, and that our ancestors replaced the archaic human species they found in their migrations, including Neanderthals and Denisovans. (In the last few years evidence from nuclear genomes of fossil humans has indicated that there was limited interbreeding between the ancestors of modern...
On the assumption that humans and chimpanzees last shared a common ancestor 6 million years ago (6 Mya), when did modern humans and Neanderthals last share a common ancestor? Your data are the mitochondrial genome sequence differences and the tree inferred from those numbers of substitutions, on the slide near the end of Jon's lecture # 4 (L4). Please give your answer in units of millions of years, to the nearest tenth of a million (i.e., in the form X.Y)....
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