synÂ·theÂ·size (sÄ­nâ²thÄ­-sÄ«zâ²) v. synÂ·theÂ·sized, synÂ·theÂ·sizÂ·ing, synÂ·theÂ·sizÂ·es v.tr. 1. To combine so as to form a new, complex product: His works synthesize photography, painting and linguistic devices (Paul Taylor). 2. To form or produce by chemical synthesis. 3. To produce (sound or music) by means of a synthesizer. v.intr. To form a synthesis.
There are a number of other risk factors for premature labour and delivery. Some of these risks, such as anemia, slow maternal weight gain, stressful work habits, smoking, drinking alcohol, and using drugs like cocaine, can be rectified during pregnancy.
If the non-sex chromosomes (autosomes) fail to separate properly, the results are usually fatal and the pregnancy is not carried out. When autosomal non-disjunctions do lead to birth, the individual will carry a third chromosome. Trisomy 21 causes Down syndrome. Trisomy 13 results in Patau syndrome. Trisomy 18 leads to Edward's syndrome.