Muller's ratchet
... In genetics , Muller 's
ratchet is a hypothesis that explains how functionally ... considered a separate organism).
Muller's
ratchet applies to any deleterious mutation that occurs ... mutations resemble the operation of a
ratchet , in that the organism can never go back.
By ...
Endosymbiont
... complementary theory as to why the bacteria may have lost genes, Muller's
ratchet , is that since the endosymbionts are maternally transmitted and have no ... journal. Nancy A. Moran (1996), Accelerated evolution and Muller’s
ratchet in endosymbiotic bacteria, Proceedings of the National Academy of ...
Endosymbiont
... complementary theory as to why the bacteria may have lost genes, Muller's
ratchet , is that since the endosymbionts are maternally transmitted and have no ... journal. Nancy A. Moran (1996), Accelerated evolution and Muller’s
ratchet in endosymbiotic bacteria, Proceedings of the National Academy of ...
Mutational meltdown
... a downward spiral and will go extinct eventually.
See also : Muller's
ratchet
Further reading
W. Gabriel, M. Lynch, and R. Burger (1993). Muller's
ratchet and mutational meltdowns. Evolution 47: 1744-1757.
M. Lynch, R. ...
Fitness landscape
... rate is too high, or it may drift away from a peak it had already found. The process of drifting away from a peak is often referred to as Muller's
ratchet .
Fitness landscapes in evolutionary optimization
Apart from the field of evolutionary biology, the concept of a fitness landscape has also ...
Genetic recombination
... unbalanced recombination. Enzymes called recombinases catalyze this reaction.
Recombination is the mechanism by which organisms avoid Muller's
ratchet .
Contents showTocToggle("show","hide")
1 Crossing over
1.1 Chemistry of crossover
1.2 Consequences of crossover
1.3 ...
Population genetics
...
Founder effect
Genotype-phenotype distinction
Hardy-Weinberg principle
Microevolution
Molecular evolution
Muller's
ratchet
Mutational meltdown
Population bottleneck
Selection
Small population size
Ewens's sampling formula
References
J. ...