• Publications
  • Influence
The Mutagenic Activity of Dyes in Drosophila melanogaster
  • A. Clark
  • Biology
  • The American Naturalist
  • 1 September 1953
TLDR
A number of basic dyes have been tested for ability to produce sex-linked, recessive lethals in D. melanogaster, the most active being pyronin B, suggesting that the mutagenic activity of a dye is related to its affinity for unpolymerized nucleic acid. Expand
Micronuclei in adult and foetal mice exposed in vivo to heliotrine, urethane, monocrotaline and benzidine.
TLDR
This study demonstrated the sensitivity of the transplacental MN assay for detecting clastogenic damage in mice induced by chemicals and their metabolites and changes in erythrocyte population composition and the presence of basophilic stippling following exposure to LD50 heliotrine. Expand
Behavior of gynandromorphs of the wasp Habrobracon juglandis.
TLDR
Observations of sex behavior for gynandromorphs of the wasp Habrobracon juglandis confirmed that sex behavior is unrelated to the thorax, abdomen and genitalia and does not seem to be related to the sex of the external sensors of the head but to the genotype of the brain. Expand
The physiology of carbon dioxide transport in insect blood. Part II. The effect of insect blood on the rate of hydration of CO2.
TLDR
Neither Locust nor Gastrophilus larva blood contains any substance which inhibits the hydration of carbon dioxide, and the absence of carbonic anhydrase from insect blood has been confirmed. Expand
The Influence of Diet upon the Adult Life Span of Two Species of Bracon
TLDR
In Bracon, the life span of the females seems to be independent of their fecundity, and the genotype of the organism is a determining factor in the role of nutrition in relation to longevity. Expand
Egg Production and Adult Life Span in Two Species of Bracon (Hymenoptera: Braconidae)
TLDR
Within each species, there was no correlation between egg production and length of adult life span, and results indicate that fecundity is not involved in the modification of life span in these species. Expand
The modification by x-irradiation of the life span of haploids and diploids of the wasp, Habrobracon sp.
TLDR
The differential sensitivity of haploid and diploid adults to x irradiation indicates that gene action is taking place in the adult stage and in nondividing cells, which suggests that the normal aging process is not due to an accumulation of somatic mutations. Expand
The Relation of Genome Number to Radiosensitivity in Habrobracon
  • A. Clark
  • Biology
  • The American Naturalist
  • 1 March 1957
TLDR
Haploids and diploids of Habrobracon are compared with regard to their sensitivity to damage by x-rays and the bearing of these data on determining the site of injury from x-radiation is discussed. Expand
The transplacental micronucleus test.
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