embryology Embryology (from Ancient Greek, Greek ἔμβρυον, ''embryon'', "the unborn, embryo"; and -λογία, ''-logy, -logia'') is the branch of animal biology that studies the Prenatal development (biology), prenatal development of gametes (sex ...

, sturt is a measure of distance. On the

fate map Fate mapping is a method used in developmental biology to study the Embryo, embryonic origin of various adult Tissue (biology), tissues and structures. The "fate" of each cell or group of cells is mapped onto the embryo, showing which parts of t ...

, the further apart two regions are, the more likely the resulting structures are to form different

genotype The genotype of an organism is its complete set of genetic material. Genotype can also be used to refer to the alleles or variants an individual carries in a particular gene or genetic location. The number of alleles an individual can have in a ...

s. A difference of 1% in the ratio of differing genotypes is described as one sturt, after

Alfred Henry Sturtevant Alfred Henry Sturtevant (November 21, 1891 – April 5, 1970) was an American geneticist. Sturtevant constructed the first genetic map of a chromosome in 1911. Throughout his career he worked on the organism ''Drosophila melanogaster'' with T ...

. It was named by Yoshiki Hotta and

Seymour Benzer Seymour Benzer (October 15, 1921 – November 30, 2007) was an American physicist, molecular biologist and behavioral geneticist. His career began during the molecular biology revolution of the 1950s, and he eventually rose to prominence in the ...

References

Developmental biology {{developmental-biology-stub