Results 31 to 40 of about 70 (70)
GENETICS OF PLATYPOECILUS III. INHERITANCE OF SEX AND CROSSING OVER OF THE SEX CHROMOSOMES IN THE PLATYFISH [PDF]
Genetics, 1937 openaire +4 more sources
THE GENETICS OF ARTEMIA SALINA. V. CROSSING OVER BETWEEN THE X AND Y CHROMOSOMES [PDF]
Genetics, 1965 openaire +3 more sources
Archives of Cardiovascular Diseases Supplements, 2012 Ghalia Anzaha +10 more
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Population genetics of unequal crossing over
Journal of Molecular Evolution, 1975The population genetics of unequal crossing over was examined for an infinite population with random mating. The following cases were considered: 1. There is an initial portion of duplicated genes which offer the opportunity for unequal crossing over, but the primary event leading to the duplication does not occur any more (model 1a). 2.
J. Krüger, F. Vogel
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Genetic homology and crossing over in the X and Y chromosomes of mammals [PDF]
Human Genetics, 1982 The "X-Y crossover model" described in this paper postulates the (1) the pairing observed between the X and the Y chromosome at zygotene is a consequence of genetic homology, (2) there is a single obligatory crossover between the X and Y pacing segments, and (3) the segment of the X which pairs with the Y is protected from subsequent inactivation ...
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Performance analysis of permutation cross—over genetic operators
Journal of Decision Systems, 1996ABSTRACT We are interested here in the utilization of Genetic Algorithms (GA) as approximation methods for combinatorial optimization. They are stochastic methods using genetic operators on a population. For their design, two points must be worked: the general scheme of the algorithm with parameter adjustment and the design of chromosome contents and ...
Mane-Claude Portmann +2 more
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Genetics of Ustilago violacea. III. Crossing Over and Nondisjunction
Botanical Gazette, 1978The frequency of crossing over between two sporidial color mutations, between mutant sites in the white (w) locus and the centromere, and between two complementing mutations in the w locus was determined by teliospore colony (intact tetrad) analysis.
M. L. Baird +2 more
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Unequal crossing over at the rRNA locus as a source of quantitative genetic variation
Nature, 1978MUTATIONS, in the broad sense, are the source of genetic variation for evolutionary change, whether through the agency of natural or artificial selection. The contributions of new mutations to genetic variation in artificial selection lines are thought to be small, as estimates of the rate of generation of new genetic variation by mutation have been ...
Richard Frankham +2 more
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Apparent Double Crossing-Over in a Short Genetic Interval in Drosophila melanogaster [PDF]
Nature, 1960 IN view of the reported occurrence of double crossing-over within a short genetic interval in Aspergillus 1 and of the purported existence of negative interference in bacteriophage2, it is worth while to record the recovery in Drosophila melanogaster of apparent double cross-over types within a short genetic interval where interference is nominally ...
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Crossing-over modifiers and other genetical changes in the crossing-over value
1932This is probably one of the most fascinating chapters in analytic genetics, and one of the most important chapters in cyto-genetics. The fact is, as Rasmusson (93) puts it, “... the linkage values are inherited as any quantitative character of any organism propagating in a sexual way ....
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