Reader feedback Carry a bag on your back to travel: Yali Shirt Big _: Yubao My Love: Tea Eggs with Love: Night Jazz Hall: Persistence is a kind of love, so is giving up. Under normal circumstances, Everyone has 23 pairs of chromosomes, From father and mother respectively. If the number of these chromosomes is abnormal, Or duplication and loss of some fragments, Children will behave differently from other children. Such as abnormal face, multiple malformations, growth retardation, mental retardation, etc. Serious birth defects, It is a tragedy for every family. If serious abnormalities are found early in the prenatal examination, Termination of pregnancy can avoid tragedy. Whether to terminate pregnancy needs clear and strict scientific basis. People often ask: Read More …