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 occurred twice independently. Label chimp sequences (c), gorilla (g), orangutans (o), and humans (h).
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Biology, 21.06.2019 22:00
In what for do plants utilize nitrogen? why do they need nitrogen?
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How can an organ, such as the lungs, work for multiple body systems?
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Biology, 22.06.2019 09:30
Parthenogenesis is a type of reproduction that does not require a mate. itβs rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.
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Biology, 22.06.2019 13:00
What is the role of dna ligase in the elongation of the lagging strand during dna replication?
Answers: 1
You are studying the source of new virus that has recently infected humans. You suspect that the vir...
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