• genetics
  • Questions of genetics, eugenics, "improving the breed," and the like (including questions of what makes genetic intervention good/justifiable or the opposite) permeate not only BEYOND but, notoriously, other words of RAH's, particularly GULF, METHUSELAH'S CHILDREN, TIME ENOUGH FOR LOVE, and FRIDAY. (heinleinsociety.org)
  • One hundred years ago, the first paper in the first issue of GENETICS used genetic maps and chromosome anomalies in Drosophila melanogaster to support the chromosomal theory of inheritance ( Bridges 1916 ). (genetics.org)
  • Alex Fraser (1923-2002) was a major innovator in the development of the computer modeling of population genetics and his work has stimulated many advances in genetic research over the past decades. (wikipedia.org)
  • genome
  • Attractive' male birds that mate with many females aren't passing on the best genes to their offspring, according to new UCL research which found promiscuity in male birds leads to small, genetic faults in the species' genome. (phys.org)
  • Curtis, P. J. 2004-08-01 00:00:00 A cDNA library of short random fragments derived from four of the five genes of the rabies virus genome has been used to isolate genetic suppressor elements (GSEs) expressed intracellularly that inhibit rabies virus replication. (deepdyve.com)
  • The problem is that when selection acts on linked loci, it introduces correlations along the genome that are difficult to disentangle. (plos.org)
  • He built the first zebrafish genetic map and showed that its genome, along with that of distantly related teleost fish, had been duplicated. (genetics.org)
  • species
  • However, recurrent selection does not lend itself well to experimentation because it can take many years and even decades to reveal substantial phenotypic changes from selection in field experiments, even in annual plant species. (genetics.org)
  • Understanding the genetic basis for the wrecked phenotype provides insights into disease mechanisms, and learning how wrecked species cope with the altered phenotype can offer hints toward novel therapies. (genetics.org)
  • This species demonstrates strong genetic selection of certain physiological strains (Prosser 1957). (wikipedia.org)
  • variability
  • However, these results suggest that there is reduced power to resolve individual selection pressures when interference is sufficiently widespread, since a broad range of parameters possess nearly identical patterns of silent site variability. (plos.org)
  • In many localities, there is little or no genetic variability between individual polyps as they are all clones of each other. (wikipedia.org)
  • This happens because there is a lack of genetic variability among the population, and as the limits of tolerance of some parameter is approached, there is a sudden incidence of mortality among the whole population. (wikipedia.org)
  • markers
  • A new study has identified genetic markers that will now make it possible to select eggs that may have the best chance of successful pregnancy after in vitro fertilization (IVF). (medindia.net)
  • Lander and Botstein's (1989) interval mapping has revolutionized genetic mapping and made it possible to locate QTL in intervals between observed markers. (genetics.org)
  • critics
  • A number of literary critics have found the principles of sexual selection particularly relevant to Austen's novels, with their focus on the complex dynamics of courtship, especially from the woman's point of view. (jasna.org)
  • Critics of genetic selection for deafness consider deafness to be a disability that limits a child's potential. (iit.edu)
  • genes
  • It is therefore important for a woman to wisely choose a mate who is likely to provide not just good genetic material but resources and protection that will allow her and her children to thrive and pass on their genes. (jasna.org)
  • Spanish health authorities said that they have authorized the genetic screening of pre-implantation embryos to ensure they do not carry genes that might cause cancer. (medindia.net)
  • Non- H -2 genes responsible for negative selection of Tcrb-V 11 + T cells were examined using backcross mice of various strains with C58, which does not delete Tcrb-V 11 + T cells. (springer.com)
  • mutation
  • Particle filtering uses a genetic mutation-selection sampling approach, with a set of particles (also called samples) to represent the posterior distribution of some stochastic process given noisy and/or partial observations. (wikipedia.org)
  • Darwin
  • 1 According to Charles Darwin (in The Descent of Man, and Selection in Relation to Sex ), sexual selection involves two components: male competition with other males for access to females and female choice of the most appealing males. (jasna.org)
  • next
  • Retaining the best individuals in a generation unchanged in the next generation, is called elitism or elitist selection. (wikipedia.org)
  • The next RAH-AIM Readers Group chat will be "Genetic Selection in Heinlein," scheduled for December 4 and 6, 8pm and 4pm U.S. Central Time (respectively). (heinleinsociety.org)
  • With each cycle, parents that are superior are selected and intermated to produce progeny for the next round of selection. (genetics.org)
  • work
  • HORIZON, for instance, gives us some sobering glimpses of the "Control Naturals" - people who have not benefited from genetic-selection work because, in some cases at least, the geneticists found no way to pull significant improvements from their parents' genomes ("There wasn't anything to select for in either of us," says Herbert, a Control Natural, in explaining why he and his Control Natural wife decided not to have children. (heinleinsociety.org)
  • A work begun in 1912 with 377 selections of wheats that highlightedthe plant breeding as a powerful tool for improve the agricultural yields, which led in 1919 to the recategorization of La Estanzuela by legislation such as Phytotechnical Institute and National Seedling. (wikipedia.org)
  • His seminal work, "Simulation of genetic systems by automatic digital computers" (1958), is quoted in the literature to this day. (wikipedia.org)
  • good
  • Robert and Virginia never had children of their own, although they wanted them … and although Robert, like Martha in HORIZON, expressed himself passionately and often about the need for people of "good genetic stock" - in whatever way(s) one might define that - to reproduce and pass on their genetic advantages. (heinleinsociety.org)
  • Good BH, Walczak AM, Neher RA, Desai MM (2014) Genetic Diversity in the Interference Selection Limit. (plos.org)
  • results
  • These results show that cavefish derived from different clades can use alternative genetic mechanisms to converge on a phenotype that in many ways mimics retinal degeneration in aging people. (genetics.org)
  • individual
  • A generic selection procedure may be implemented as follows: The fitness function is evaluated for each individual, providing fitness values, which are then normalized. (wikipedia.org)
  • Repeatedly selecting the best individual of a randomly chosen subset is tournament selection. (wikipedia.org)
  • Selection on individual nucleotides can be modeled very precisely, provided that the sites evolve in isolation. (plos.org)
  • male
  • Androgen insensitivity syndrome (AIS) is an intersex condition in which there is a partial or complete inability of many cells in the affected genetic male to respond to androgenic hormones. (wikipedia.org)
  • This can prevent or impair the masculinization of male genitalia in the developing genetic male (chromosomal XY) fetus, as well as the development of male secondary sexual characteristics at puberty. (wikipedia.org)
  • rapid
  • This potential gain from inbreeding has strong implications for agricultural improvement programs, particularly when a rapid response to selection and phenotypic uniformity are desired. (genetics.org)
  • Type
  • The hybrid origin of some types may not be obvious - for example, genetic testing of the Dwarf Lulu breed, the only taurine-type cattle in Nepal, found them to be a mix of taurine cattle, zebu, and yak. (wikipedia.org)