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  • 1
    San Diego : Academic Press
    Call number: A0700:1
    Keywords: Drosophila melanogaster / Genetics ; Genome
    Notes: Rev. ed. of: The genetic variations of Drosophila melanogaster / D.L. Lindsley and E.H. Grell. 1968.
    Pages: viii, 1133 p., [8] leaves of plates
    ISBN: 0124509908
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  • 2
    ISSN: 1617-4623
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The distal uninverted portion of In(1)sc8, which carriesy + andac +, is occasionally lost during spermatogonial divisions. This is accomplished by exchange between the protion of the proximal heterochromatin that has been removed distally by the inversion and some other heterochromatin in the complement (see alsoLindsley 1955b).. The majority of the recombiants recovered from males carrying In(1)sc8 arise through exchange with the Y chromosome (12/15). The majority of the recombinants recovered from males carring In(1)sc8L, ENR, which is characterized by a heterochromatic second arm, do not arise through exchange with the Y chromosome (18/22). The absolute frequencies of Y involvement with In(1)sc8 (7/105067) and In(1)sc8L, ENR,(2/38588), however, are comparable. The heterochromatic constitution of the recombinants examined is consistent with the hypothesis that an observed excess of recombinants recoverred from In(1)sc8L, ENR as compared with In(1)sc8 is accounted for by Y independent recombinants and is the consequence of exchange between the second heterochromatin arm of In(1)ENR and the distal heterochromatin of In(1)sc8L. A maximum of six different regions of exchange between these two regions may be inferred from the constitution of the recombinants. This inference is considered to support the hypothesis that pairing and exchange between heterochromatic regions are not strictly homologous.
    Type of Medium: Electronic Resource
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  • 3
    London : Henry Stewart Talks
    Keywords: Drosophila / genetics
    Description / Table of Contents: Contents: Sex linked inheritance, linkage and linear chromosome maps -- Non-disjunction -- Genic balance theory of sex determination -- Chromosome aberrations -- Mutational studies of the gene -- X-ray induction of gene and chromosome mutations -- Cytological dissection of the X chromosome -- Mitotic cytology -- Polytene cytology
    Notes: Animated audio-visual presentation with synchronized narration.
    Pages: 1 streaming video file (63 min.) : digital, mono., SWF file, sd., col.
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