circular DNA necklace | gold vermeil pp_render It became the default by

It became the default by convention rather than by design

Why T3 specifically rather than T4

with its 86 billion neurons and unmistakable folded surface

It sits opposite Ursa Major across the celestial pole

anencephaly) trace to a failure of neural-tube closure around week 4

circular DNA necklace | gold vermeil pp_render It became the default byCircular DNA necklace gold vermeil Most of life on Earth carries its genome as a closed loop. Bacteria, mitochondria, chloroplasts, plasmids: all circular. Linear chromosomes are the late evolutionary arrival, found mostly in eukaryotes. The closed loop is the older architecture, and it never went away. The Science Behind Circular DNA Bacteria carry their genome as a circular chromosome alongside smaller circular plasmids, autonomously replicating DNA