âIn normal development, the lips form during the seventh week of pregnancy and then the palate forms by week 12. Our study suggests this gene is required for lip formation early on and then again, later, for palate formation,â Moreno adds. Although the study suggests that FOXE1 abnormalities contribute to cleft lip and cleft palate, the researchers have not yet found the exact mutation in the gene that causes clefting. Instead, they have identified a variation in the genetic code that acts as a marker for the mutation.
Classical Antiquity in Greece was preceded by the Greek Dark Ages (c. 1200 â c. 800 BC), archaeologically characterised by the protogeometric and geometric styles of designs on pottery. Following the Dark Ages was the Archaic Period, beginning around the 8th century BC.
Ancient Greece Timeline Classical Age. Aeschylus was the first of the three great ancient Greek writers of tragedy. Born at Eleusis, he lived from about 525-456 B.C., during which time the Greeks suffered invasion by the Persians in the Persian Wars.Aeschylus fought at the major Persian War Battle of Marathon.The Fame of Aeschylus:ncient Greece Timeline Classical Age. Aeschylus was the first of the three great ancient Greek writers of tragedy. Born at Eleusis, he lived from about 525-456 B.C., during which time the Greeks suffered invasion by the Persians in the Persian Wars.