In Figure 1, the values above branches indicate bootstrapped confidence values. Branch lengths are proportional to percent

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In Figure 1, the values above branches indicate bootstrapped confidence values. Branch lengths are proportional to percent similarity in viral envelope gene sequence. TBE: tick borne encephalitis; TSE: Turkish sheep encephalitis; GGE: Greek goat encephalitis; LI: louping ill virus; SSE: Spanish sheep encephalitis; KFD: Kyasanur Forest disease virus; TYU: Tyuleniy virus; SRE: Saumarez Reef virus.

100 92 53 100 53 100 Deer tick virus 100 TYU SRE YF Powassan Langat 100 100 100 99 KFD TBEeast(Sof) 87 TSE

(a) Describe what is represented by a node in a phylogenetic tree.

(b) Identify two of the viruses that are LEAST similar to GGE.

(c) In 50 years, new data have identified that TBEwest(Hypr) is no longer in circulation, but it seems to have evolved in two directions: TBEwest1 and TBEwest2.

Using the empty tree below, correctly indicate TBEwest(neu), TBEwest(Kuml), TBEwest1, and TBEwest2 100 100 100 H C

(d) This phylogenetic tree was created using nucleotide sequences. If protein sequences were used instead, explain why this might increase the similarity between the viruses?

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a A node represents a common ancestor This means that the species that branch from that p...View the full answer

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The Princeton Review AP Biology Premium Prep 2023

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Question Posted: Nov 06, 2023 04:09 AM

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In Figure 1, the values above branches indicate bootstrapped confidence values. Branch lengths are proportional to percent

Question:

100 92 53 100 53 100 Deer tick virus 100 TYU SRE YF Powassan Langat 100 100 100 99 KFD TBEeast(Sof) 87 TSE -TBEwest(Neu) TBEwest(Kuml) 60 GGE TBEwest (Hypr) - LI(SB526) LI(LI/A) Negishi - LI(369/T2) SSE 100 bp substitutions

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a A node represents a common ancestor This means that the species that branch from that p...View the full answer

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