A pair of crosses between a male of one strain and a female of another, and vice versa.
- The reciprocal cross produces only hybrid males, with females dying as embryos.
- Males from both reciprocal crosses do not express the lethal phenotype, indicating that the effect is not associated with the X chromosome.
- A simple way to detect genetic maternal effects consists of conducing reciprocal crosses between strains that have been kept in the same environment for several generations.
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Syllabification: re·cip·ro·cal cross
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