 የቀረበ የዘር ርቢ ስፍራውን ያዘ፣ እናም በጊዜ ውስጥ የሚሆኑ ገጽታዎች በእነዚህ የተለያዩ ቡድኖች እየተጋነኑ መጡ (ሁሉም በጀነቲክ መለያ ውስጥ ሊኖሩ የሚችሉበት አጋጣሚ አለ) ።
Closer inbreeding took place, and in time certain features were emphasized in these different groups (all of which were present as a possibility in the genetic code).