• Publications
  • Influence
The Controlling Element in Sex Chromosome Behavior in Sciara.
  • H. Crouse
  • Biology, Medicine
  • Genetics
  • 25 October 1960
ENETIC and cytological studies have been made on a number of species of Sciara (see METZ 1938 for review). Common to all of these species is a series of unusual and remarkable cytological phenomenaExpand
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The elimination and differentiation of chromosomes in the germ line of sciara
The germ line chromosomes of S. coprophila have been followed from the time of origin of the germ cells up to the time of meiosis in the male and up to first larval molt in the female. The mechanismExpand
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The role of ecdysone in DNA-puff formation and DNA synthesis in the polytene chromosomes of Sciara coprophila.
  • H. Crouse
  • Biology, Medicine
  • Proceedings of the National Academy of Sciences…
  • 1 November 1968
The so-called "DNA-puffs" are a characteristic and exclusive feature of sciarid polytene chromosomes. A number of descriptive and comparative studies on these structures have been carried out overExpand
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  • PDF
The nature of the influence of X-translocations on sex of progeny in Sciara coprophila
Summary1.A reciprocal translocation between chromosomes X and II in S. coprophila was used to elucidate the occurrence of exceptional sons and daughters among the progeny of females heterozygous forExpand
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Localization of ribosomal DNA within the proximal X heterochromatin of Sciara coprophila (Diptera, Sciaridae)
By means of several reciprocal translocations in Sciara coprophila, each having a break-point in the proximal X heterochromatin, it has been possible in the salivary gland nucleus to bring aboutExpand
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X-ray breakage of lily chromosomes at first meiotic metaphase.
  • H. Crouse
  • Biology, Medicine
  • Science
  • 16 April 1954
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Extra Replications in the “DNA-puffs” ofSciara coprophila
Using the Zeiss UMSP-1, a spectrophotometric study was made of DNA increase in three “DNA-puffs” located on chromosome II ofSciara coprophila. Each puff showed excessive and disproportionateExpand
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L-chromosome inheritance and the problem of chromosome “imprinting” in Sciara (Sciaridae, Diptera)
The loss of the L-chromosomes from the germ line of a newly-collected strain of Sciara impatiens was used as a genetic marker to test whether the supernumeraries in this genus obey the rule of originExpand
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Cytochemical studies on the intranuclear inclusion of herpes simplex.
Summary Histochemical studies on the inclusion body of herpes simplex in the chorioallantois at various intervals after infection indicate that the formation of the inclusion is a dynamic processExpand
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