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  • Articles  (62)
  • Springer  (62)
  • American Chemical Society (ACS)
  • 2020-2024
  • 1980-1984
  • 1975-1979  (62)
  • 1979  (62)
  • Psychology
Collection
  • Articles  (62)
Publisher
Years
  • 2020-2024
  • 1980-1984
  • 1975-1979  (62)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Behavior genetics 9 (1979), S. 103-114 
    ISSN: 1573-3297
    Keywords: social class ; SES ; adoptees ; intelligence ; inheritance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Positive correlations for SES ratings are reported for a large sample of adoptees and their biological and adoptive parents. The possible effects of selective placement and late placement are examined, and the validity of the SES scale is discussed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Behavior genetics 9 (1979), S. 115-122 
    ISSN: 1573-3297
    Keywords: flying ability ; Tribolium castaneum ; artificial selection ; strain differences ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Divergent selection for flying ability has been carried out in four populations ofTribolium castaneum recently captured from the wild. Upward selection changed the percentage of flying individuals from 2–16% to 90–100%. Relaxation of selection did not appreciably change the means previously attained by upward selection, whereas reverse selection was sometimes effective. Natural selection forces acting on the trait thus cannot be strong under laboratory conditions. Laboratory populations appear to be less variable than wild populations; only one out of three populations tested showed phenotypic variation for flying ability. Alternative hypotheses for explaining these observations are discussed.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Behavior genetics 9 (1979), S. 123-128 
    ISSN: 1573-3297
    Keywords: Drosophila melanogaster ; phototaxis ; X chromosome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Strains ofDrosophila melanogaster differ in their phototactic responses to red light (654 nm). Genes located on all three major chromosomes are involved in influencing the response, but the X chromosome and third chromosome account for most of the variation in phototaxis.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Behavior genetics 9 (1979), S. 135-136 
    ISSN: 1573-3297
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Behavior genetics 9 (1979), S. 137-137 
    ISSN: 1573-3297
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Behavior genetics 9 (1979), S. 129-134 
    ISSN: 1573-3297
    Keywords: Drosophila melanogaster ; D. simulans ; larval feeding behavior ; egg-to-adult viability ; isofemale line
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Larval feeding behavior of isofemale lines of the sibling speciesDrosophila melanogaster andD. simulans was investigated. This behavior was measured as the number of cephalopharyngeal retractions of individual larvae per 30 sec period (CPR score) in different generations (G0, G1, and G14). In addition, egg-to-adult viability was estimated in each isofemale line. The results were as follows: (1) In either species, there was variation of CPR score among individuals and among isofemale lines. Although no differences of CPR score were found among experimental groups (generations) and between species, there was a significant difference among isofemale lines. (2) The behavioral trait was stable through generations in each isofemale line. (3) This behavior was correlated with egg-to-adult viability, showing that it is important for the development of the fly.
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  • 7
    ISSN: 1573-3297
    Keywords: linkage ; X chromosome ; lod score ; quantitative character ; major gene ; marker locus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract A sequential lod-score method is proposed for detecting linkage on the X chromosome between a marker locus and the locus of a major gene influencing a quantitative trait. The method uses information from sons of doubly heterozygous mothers. The average number of families required to detect linkage is substantially less than that of the fixed sample-size method proposed by Hill.
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  • 8
    ISSN: 1573-3297
    Keywords: inbreeding ; Mus musculus ; copulatory behavior ; adaptive significance ; house mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Comparisons were made of the copulatory behavior of randomly bred (one population: WRL) and inbred wild (five strains: PAA, PAB, PAC, PAD, and PAE) male house mice. All inbred and randomly bred stocks were derived from a single foundation population. The inbred males tended to have shorter latencies to the first mount and intromission, longer latencies to ejaculation, and more preejaculatory mounts and thrusts than randomly bred males. All these effects parallel those observed in a previous study in which a wild population was compared with various domestic inbred strains. If inbreeding depression is related to adaptive significance, these data suggest that, although rapid initiation of copulation in a novel environment may not be adaptive, it may be adaptive for mice to ejaculate rapidly once copulation is initiated.
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Behavior genetics 9 (1979), S. 165-175 
    ISSN: 1573-3297
    Keywords: selection ; neural function ; reflex ; open-field behavior ; mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Behavioral and physiological scores from 679 mice sampled from lines at various times during their response to bidirectional selection for divergent caudal nerve conduction velocity suggest broad-reaching behavioral effects of the gene differences among lines. Sciatic nerve conduction velocity differences as well as line differences in reflexive leg withdrawal indicate gene effects general to other peripheral nerves and to behaviors with known dependence on function by those nerves. Independently replicated line differences for open-field activity and defecation demonstrate effects on more complex behaviors with no obvious direct relationship to peripheral nerve conduction velocity. The direction of line differences in open-field behaviors suggests that genetic variance for peripheral nerve function may contribute to genetic covariance between these behaviors.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Behavior genetics 9 (1979), S. 177-207 
    ISSN: 1573-3297
    Keywords: intelligence ; heritability ; adoption ; cognitive abilities
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Intellectual and personality measures were available from unwed mothers who gave their children up for adoption at birth. The same or similar measures have been obtained from 300 sets of adoptive parents and all of their adopted and natural children in the Texas Adoption Project. The sample characteristics are discussed in detail, and the basic findings for IQ are presented. Initial analyses of the data on IQ suggest moderate heritabilities. Emphasis is placed on the preliminary nature of these findings.
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