OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 477: Genetic Toxicology: Sex-Linked Recessive Lethal Test in Drosophila melanogaster


Book Description

Mutations in the X-chromosome of Drosophila melanogaster are phenotypically expressed in males carrying the mutant gene. When the mutation is lethal in the hemizygous condition, its presence is inferred from the absence of one class of male ...










OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 485: Genetic toxicology, Mouse Heritable Translocation Assay


Book Description

The mouse heritable translocation test detects structural and numerical chromosome changes in mammalian germ cells as recovered in first generation progeny. The types of chromosome changes detected in this test system are reciprocal translocations ...




OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 481: Genetic Toxicology: Saacharomyces cerevisiae, Miotic Recombination Assay


Book Description

This assay may be used to measure mitotic recombination (gene conversion or crossingover) in yeast, a eukaryotic micro-organism. Crossing-over is generally assayed by the production of recessive homozygous colonies or sectors produced in a ...




OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 484: Genetic Toxicology: Mouse Spot Test


Book Description

The mouse spot test detects presumed somatic mutations in fetal cells following transplacental absorption of the test substance. This is an in vivo test in mice in which developing embryos are exposed to a chemical (solid, liquid, vapour or ...




OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 480: Genetic Toxicology: Saccharomyces cerevisiae, Gene Mutation Assay


Book Description

This assay may be used to measure gene mutation in yeast, a eukaryotic micro-organism. Strains of Saccharomyces cerevisiae have been developed which detect forward or reverse mutations. A variety of haploid and diploid strains of the yeast can be ...




Test No. 478: Genetic Toxicology: Rodent Dominant Lethal Test


Book Description

Dominant lethal (DL) effects cause embryonic or foetal death. Induction of a dominant lethal event after exposure to a test substance (liquid, solid, vapour or gas, ...) indicates that the substance has affected germinal tissue of the test species ...




OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 479: Genetic Toxicology: In vitro Sister Chromatid Exchange Assay in Mammalian Cells


Book Description

The sister chromatid exchange (SCE) assay is a short-term test for the detection of reciprocal exchanges of DNA between two sister chromatids of a duplicating chromosome. Detection of SCEs requires some means of differentially labeling sister ...




OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 414: Prenatal Developmental Toxicity Study


Book Description

This Test Guideline for developmental toxicity testing is designed to provide general information concerning the effects of prenatal exposure on the pregnant test animal and on the developing organism. The test substance is normally administered to ...