Methods: The incidence rates of earlyreproduction inability of chromosome heteromorphism group and normal karyotype group were compared by using G, C-banded chromosome karyotype analysis.
Early 20th-century European painters wanted viewers to recognize that they were looking at lines and color on a canvas rather than at a reproduction of the natural world.
20世纪初的欧洲画家希望赏画人注意画布上的线条与色彩，而不是将作品视为对自然实物的复制。
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This may have theoretical significance to the study of the regulation of early embryo development and may also have practical value to reproduction medicine.