¿Qué relación existe entre la meiosis y el síndrome de Down?

i think its the first one

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.

if someone had the list of traits you provided