Where does the embryo store the memory of the development of the whole organism into a single system?
- Thread starter Olga
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exchemist
Valued Senior Member
What makes you think memory is already present in an embryo? What is the evidence? It seems most unlikely to me.
I mean, the body is formed from a cell not randomly, but quite definitely. It turns out that somewhere there is a program that remembers the sequence of formation of an organism.
exchemist
Valued Senior Member
Yes, that’s stored information in the genetic code, in the DNA of the cell, which is mainly in the nucleus. But that is not memory.
Why do organs form in a certain sequence?
exchemist
Valued Senior Member
That is the subject known as embryonic development: https://en.wikipedia.org/wiki/Animal_embryonic_development
I know how they form. But doesn't that require memory? Just like for any program.
exchemist
Valued Senior Member
A program isn’t memory. It’s a set of instructions.
Any system is either a memory or a law. If there is no memory, then what law is involved there?
Pinball1970
Valued Senior Member
Embryology is extremely complex and involves cascades of chemical signaling between cells, cell differentiation and multiplication. Did you read exchemists link?
Да, читала. Это немного не о том. Пусть программа обо всём организме изначально содержится в одной клетке. Тогда почему память ищут в мозге, если одна клетка способна хранить информацию не только обо всём организме, но и о всех предках индивида?
Pinball1970
Valued Senior Member
Because memory is a developmental feature once the brain is developed and stimulated. One cannot have a memory without a functioning brain.
Эмбрион развивается и без мозга.
Pinball1970
Valued Senior Member
Thats right, it develops with lots of other things missing too, arms legs , bones, muscles, eyes, ears. Just a mass of cells called a blastocyst. (I had to look that up- I had forgot)
Но тем не менее он развивается согласно программе, созданной предками. Разве для этого не нужна программа, или какой то закон природы? Если не память, то какой закон предписывает ему развиваться определённым образом?
Pinball1970
Valued Senior Member
The cells grow replicate and start to differentiate according to which genes are being switched on and off.
The genes are present in every cell, why one cell ends up being a nerve cell and why another ends forming part of the eye is very very complicated.
My good friend from school was very clever, I was envious of him and he teased me for not getting answers as quick as him.
He went to study Dentistry at the time I was studying Applied biology, when he encountered embryology he absolutely hated it because it was so tough.
I would have to copy whole swathes of text just to explain little bits and you can easily do that on your own.
Я имею ввиду не саму технологию производства организма, а закон, по которому он развивается. Мы же знаем, какие процессы вызывают различные химические реакции, какие законы при этом задействованы. А здесь же тоже происходят обычные химические реакции, но они почему то не хаотичны, а упорядочены. Что их упорядочивает?
exchemist
Valued Senior Member
That’s not even wrong, as Pauli would say. (Das ist nicht nur nicht richtig, es ist nicht einmal falsch.) What can you mean?
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Why?
exchemist
Valued Senior Member
A ball suspended on a spring is a system. How can that BE a memory, or BE a law?