Results 21 to 30 of about 314,346 (294)

A rigorous evaluation of crossover and mutation in genetic programming [PDF]

open access: yes, 2009
The role of crossover and mutation in Genetic Programming (GP) has been the subject of much debate since the emergence of the field. In this paper, we contribute new empirical evidence to this argument using a rigorous and principled experimental method ...
David R. White   +3 more
core   +1 more source

Genome-Wide Association Study of Meiotic Recombination Phenotypes

open access: yesG3: Genes, Genomes, Genetics, 2016
Meiotic recombination is an essential step in gametogenesis, and is one that also generates genetic diversity. Genome-wide association studies (GWAS) and molecular studies have identified genes that influence of human meiotic recombination.
Ferdouse Begum   +4 more
doaj   +1 more source

Adaptive Linkage Crossover

open access: yesEvolutionary Computation, 1998
Problem-specific knowledge is often implemented in search algorithms using heuristics to determine which search paths are to be explored at any given instant. As in other search methods, utilizing this knowledge will more quickly lead a genetic algorithm (GA) towards better results.
Ayed A. Salman   +2 more
openaire   +4 more sources

ZIP4 is required for normal progression of synapsis and for over 95% of crossovers in wheat meiosis

open access: yesFrontiers in Plant Science, 2023
Tetraploid (AABB) and hexaploid (AABBDD) wheat have multiple sets of similar chromosomes, with successful meiosis and preservation of fertility relying on synapsis and crossover (CO) formation only taking place between homologous chromosomes.
Tracie N. Draeger   +6 more
doaj   +1 more source

Crossover Interference, Crossover Maturation, and Human Aneuploidy

open access: yesBioEssays, 2019
A striking feature of human female sexual reproduction is the high level of gametes that exhibit an aberrant number of chromosomes (aneuploidy). A high baseline observed in women of prime reproductive age is followed by a dramatic increase in older women.
Shunxin Wang   +6 more
openaire   +3 more sources

Effect of Arm Eccentric Exercise on Muscle Damage of the Knee Flexors After High-Intensity Eccentric Exercise

open access: yesFrontiers in Physiology, 2021
Repeated bout effect (RBE) describes a phenomenon that an initial unaccustomed eccentric exercise (ECC) bout can confer a protective effect against muscle damage from the subsequent same exercise.
Xin Ye   +4 more
doaj   +1 more source

Prevalence and Impact of Treatment Crossover in Cardiac Surgery Randomized Trials: A Meta‐Epidemiologic Study

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background Crossover dilutes treatment effect and reduces statistical power of intention‐to‐treat analysis. We examined incidence and impact on cardiac surgery randomized controlled trial (RCT) outcomes of crossover from experimental to control ...
Mario Gaudino   +9 more
doaj   +1 more source

Crossover operators to control size growth in linear GP and variable length GAs [PDF]

open access: yes, 2008
In various nuances of evolutionary algorithms it has been observed that variable sized genomes exhibit large degrees of redundancy and corresponding undue growth. This phenomenon is commonly referred to as bloat. The present contribution investigates the
Dominique Chu   +4 more
core   +1 more source

Variable discrimination of crossover versus mutation using parameterized modular structure

open access: yes, 2007
Recent work has provided functions that can be used to prove a principled distinction between the capabilities of mutation-based and crossover-based algorithms.
Richard A. Watson   +3 more
core   +2 more sources

Tackling Plant Meiosis: From Model Research to Crop Improvement

open access: yesFrontiers in Plant Science, 2018
Genetic engineering and traditional plant breeding, which harnesses the natural genetic variation that arises during meiosis, will have key roles to improve crop varieties and thus deliver Food Security in the future. Meiosis, a specialized cell division
Christophe Lambing, Stefan Heckmann
doaj   +1 more source

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