One Problem Commonly Experienced in Phylogeny Reconstruction Arises When Two

question 13

Essay

One problem commonly experienced in phylogeny reconstruction arises when two or more of the groups being compared have accumulated far more genetic changes (mutations)than the others in the comparison.This situation often results in a phenomenon known as "long branch attraction," in which the highly mutated lineages end up grouping together in a phylogenetic analysis even if they are distantly related.What do you think causes long branch attraction? How might it be compensated for?

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Definitions:

Cancer Cells

Abnormal cells that divide uncontrollably and can invade other tissues, potentially forming tumors and spreading throughout the body.

Selection

The process by which certain traits become more or less common in a population due to their effects on the survival and reproduction of their carriers.

Sickle-Cell Anemia

A genetic blood disorder caused by a mutation in the hemoglobin gene, leading to misshaped red blood cells that can cause health complications.

Africa

The world's second-largest and second-most populous continent, known for its rich cultural heritage, diverse ecosystems, and significant natural resources.