Examlex
________ is a condition that occurs when infants stop breathing,usually during the night,and die abruptly without an apparent cause.
Species Tree
A representation of the evolutionary relationships among various species based on genetic data.
Coalescence Time
The time in the past where two or more gene sequences found in a sample population have a common ancestor.
Branch Lengths
In phylogenetics, measurements that represent the evolutionary distance or time between points in a phylogenetic tree.
Lentiviruses
A genus of retroviruses, including HIV, that cause chronic and often deadly diseases by infecting the hosts' cells and replicating.
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