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Subject: what appeared first?
maybe, but when you cross the limit he wont be the funniest...
I've never known about something in evolution where a species evolved from an egg of another species :)
Besides, the egg contains only maternal dna in the beginning and the male dna only comes in during fertilisation. So where should it evolve then?
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Besides, the egg contains only maternal dna in the beginning and the male dna only comes in during fertilisation. So where should it evolve then?
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It's true that species don't evolve from eggs, but when we're talking about the first chicken there must either been have another animal laying a chicken egg or chicken coming from another animal's egg.
Ducks have other eggs than chickens (if that's what you mean).
And there are certainly differences between a mother's DNA and an eggs DNA.
A fertilised egg has two pairs of chromosomes. Let's say a1a2. Let's say a1 is maternal DNA and a2 is paternal DNA. a1 may be either a11 (DNA from the chicken's mother's mother) or a12 (DNA from the chicken's mother's father). The same for a2 (a21a22).
The egg's DNA (a1a2) may be a11a22 or a12a22 (or any other possible combination).
a1 doesn't necessarily need to be either a11 or a12, but can also be a mixture of a11 and a12 (recombination).
Last but least: a1 can also contain some genes which were not present in a11 and a12 (mutation).
Evolution is definitely possible, but when you say a species evolves from an egg I don't understand what you exactly mean (unless you're talking about Pokémon).
Ducks have other eggs than chickens (if that's what you mean).
And there are certainly differences between a mother's DNA and an eggs DNA.
A fertilised egg has two pairs of chromosomes. Let's say a1a2. Let's say a1 is maternal DNA and a2 is paternal DNA. a1 may be either a11 (DNA from the chicken's mother's mother) or a12 (DNA from the chicken's mother's father). The same for a2 (a21a22).
The egg's DNA (a1a2) may be a11a22 or a12a22 (or any other possible combination).
a1 doesn't necessarily need to be either a11 or a12, but can also be a mixture of a11 and a12 (recombination).
Last but least: a1 can also contain some genes which were not present in a11 and a12 (mutation).
Evolution is definitely possible, but when you say a species evolves from an egg I don't understand what you exactly mean (unless you're talking about Pokémon).
i meant its the species that evolves, not its eggs.
Btw, ofc i was talking about mrna instead of dna :)
Btw, ofc i was talking about mrna instead of dna :)
What has that to do with mrna? It's only involved in transferring messages. That's why it's called messengerRNA.
don't mind, he thinks that he knows it but in fact hes just spamming here ;)
mrna is used for WAY more things ... Eg, in developmental biology, maternal goosecoid is present in the unfertilised egg (that was the part where I was talking about) ;) If you want to check it, search for 'Xenopus Goosecoid mrna in egg' or smt similar on google :) The goosecoid mrna is there located in 1 part of the egg, so there is a primary axis established in the development of the body axes. This mrna is then transcribed to proteins, which establish the gradient for that primary axis set up ;) The gradient implies other proteins to be expressed or not above or below tresholds together with other proteins ;). Then we go to pair rule genes and were way off topic ;)
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we wouldnt need an egg if there wasnt a chicken to start with, so chicken is correct
no, vandamme is only interested in meat, i am also interested in how the meat came into existance ;)