Mandibular hypoplasia, down-slanted palpebral fissures, colobomas, malformed ears, and zygomatic hypoplasia are commonly seen in what pharyngeal arch i abnormality?

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1. Mandibular hypoplasia, down-slanted palpebral fissures, colobomas, malformed ears, and zygomatic hypoplasia are commonly seen in what pharyngeal arch i abnormality?