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They probably always devoloped like this inside the egg. Eg getting wings and adult features last. So starting evolving metamorphosis might have been as simple
by mrfusion 8y ago
They probably always devoloped like this inside the egg. Eg getting wings and adult features last. So starting evolving metamorphosis might have been as simple as a few dna mutations to make them hatch earlier before being fully developed.
Of course evolving the pupa seems like it would be a lot more difficult.
- KineticLensman 8y ago> Of course evolving the pupa seems like it would be a lot more difficult Once you have evolved one intermediate form others can follow more easily. It’s always important to remember that genes define recipes that create biological structures, not blueprints of what they look like. It’s a different mechanism but genetic networks are good at repeating things like body segments, fingers, etc. Biology invented the REPEAT UNTIL loop a long time before we did.
- ajuc 8y agoNitpick to the analogy: biological loops are recursive, not iterative.
- KineticLensman 8y agoI was thinking of genes that are components of signalling pathways that regulate the expression of other genes while a particular condition holds true
- hyperpallium 8y agoontogeny recapitulates phylogeny, kinda
- dean49 8y agodea nff-qwefweff-wegffjeid-ddkemd==ddeddfmjfskeffjf.djfmdkf>sdfkmdkkv==dmdmdjdmdjfdmfjdmfjdmfjmmj--dfjeiddlseeeiffiefwsol33nhvff##ficjhj