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  1. ... House of Habsburg was famously weakened by intermarriage, leading to a number of birth defects. However, it is a middle-class anachronistic ...

    分類:科學 > 生物學 2005年05月29日

  2. ... molecules of life are modified by enzymes, which is aslo chiral specific, mirror image... has a higher risk of giving birth to defective babies as a result of the egg's ...

    分類:科學 > 生物學 2009年11月16日

  3. ...for these red spots on the retina. Diagnosis after birth usually can be quite accurate. PS's: screening...補充: then from the amniotic fluid, you test for chromosomal abnormality ( by karyotyping) or fetal infections.

    分類:科學 > 生物學 2010年05月05日