Lecture 34 - Deextinction and Phylogenetics

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Last updated 3:43 PM on 7/16/26
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8 Terms

1
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What are three techniques of species resurrection?

  1. High throughput sequencing

  2. CRISPR/Cas9

  3. Cloning

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How does CRISPS/Cas9 relate to species resurrection?

It is the genetic engineering of multiple mutations at once. Ex. Elephant embryo can be engineered by introducing batches of several thousand mutations until sequence corresponds with Wooly’s

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What are concerns with resurrecting Neanderthals?

  1. Ethics over engineering a human embryo to make a Neanderthal

  2. Rights of neanderthals?

  3. Might reactivate retroviruses

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Phylogenerics

The evolutionary relationships among species or genes. Relatedness is used to construct trees that show when two species originated from a common ancestor

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What is relatedness in phylogenetics based on?

  1. Similarities and differences in morphological characters between species pairs

  2. Similarities and differences in nucleotide (amino acid sequence) between species pairs

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Parsimony

Tree assembled based on minimum number of changes

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What is the fossil record used for in phylogenetic trees?

Anchors speciation event to a timeline in order to calculate the mutation rate

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Why do diplicated genes evolve rapidly?