Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Cebrat, Stanisław"'
Autor:
Cebrat, Stanislaw, Stauffer, Dietrich
If in the sexual Penna ageing model conditions are applied leading to complementary bit-strings, then marriages between brothers and sisters, or between close cousins, may lead to more offspring than for unrelated couples.
Comment: 7 pages, 7 fi
Comment: 7 pages, 7 fi
Externí odkaz:
http://arxiv.org/abs/1108.0289
We discuss two different ways of chromosomes' and genomes' evolution. Purifying selection dominates in large panmictic populations, where Mendelian law of independent gene assortment is valid. If the populations are small, recombination processes are
Externí odkaz:
http://arxiv.org/abs/1007.3357
In the human genomes, recombination frequency between homologous chromosomes during meiosis is highly correlated with their physical length while it differs significantly when their coding density is considered. Furthermore, it has been observed that
Externí odkaz:
http://arxiv.org/abs/1001.5309
We have simulated the evolution of age structured populations whose individuals represented by their diploid genomes were distributed on a square lattice. The environmental conditions on the whole territory changed simultaneously in the same way by s
Externí odkaz:
http://arxiv.org/abs/0911.0814
Autor:
Kula, Mateusz, Bonkowska, Katarzyna, Ogielska, Maria, Kierzkowski, Piotr, Zalesna, Anna, Cebrat, Stanislaw
Background: Hybridogenesis is a very interesting example of reproduction which seems to integrate the sexual and clonal processes in one system. In a case of frogs, described in the paper, two parental species - Rana lessonae and Rana ridibunda can f
Externí odkaz:
http://arxiv.org/abs/0903.2960
Intragenomic recombination (crossover) is a very important evolutionary mechanism. The crossover events are not evenly distributed along the natural chromosomes. Monte Carlo simulations revealed that frequency of recombinations decides about the stra
Externí odkaz:
http://arxiv.org/abs/0901.1361
We describe the simulation method of modelling the population evolution using Monte Carlo based on the Penna model. Individuals in the populations are represented by their diploid genomes. Genes expressed after the minimum reproduction age are under
Externí odkaz:
http://arxiv.org/abs/0901.1464
Autor:
Mackiewicz, Dorota, Cebrat, Stanislaw
We have presented the basic knowledge on the structure of molecules coding the genetic information, mechanisms of transfer of this information from DNA to proteins and phenomena connected with replication of DNA. In particular, we have described the
Externí odkaz:
http://arxiv.org/abs/0901.1465
We have used the Monte Carlo based computer models to show that selection pressure could affect the distribution of recombination hotspots along the chromosome. Close to critical crossover rate, where genomes may switch between the Darwinian purifyin
Externí odkaz:
http://arxiv.org/abs/0901.0990
Publikováno v:
MARF2 2006
We have modified the sexual Penna model by introducing the fluctuating environment and fluctuations representing physiological functions of individuals. Additionally, we have introduced the mother care corresponding to the protection against the dele
Externí odkaz:
http://arxiv.org/abs/0811.0347