The risk of any major birth defect for every pregnancy in the general population is 20-30 per 1,000 births. It is therefore important that pregnant women are adequately counselled and tested in the early months of pregnancy, writes TANG WENG HENG.
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The blueprint of life ... chromosomes carry all the necessary information for life. They also hold the secrets to ageing and disease. If something goes wrong, such as added copies of genetic information in any chromosome, trouble follows. |
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