2 sentences

1. 这种遗传性综合征会导致发育迟缓。

   zhè zhǒng yí​chuán​xìng zōng​hé​zhēng huì dǎo​zhì fā​yù chí​huǎn.

   This hereditary syndrome leads to developmental delays.

   Source: Dong Chinese Dictionary

2. 这种疾病带有明显的遗传性，家族成员都要定期检查。

   zhè zhǒng jí​bìng dài​yǒu míng​xiǎn de yí​chuán​xìng, jiā​zú chéng​yuán dōu yào dìng​qī jiǎn​chá.

   This disease is clearly hereditary, so all family members should have regular check-ups.

   Source: Dong Chinese Dictionary