90 votes? cool!
But lets make that 100!
bump! ; )
White.Lime wrote:Okay Guys, I'm gonna state my opinion. I believe that the chicken came before the egg. Yeah, a chicken comes from an egg but it wouldn't be able to survive. It would freeze and die with no warmth or anything to eat or any protection. So the chicken would have had to come before the egg. The chicken would have to have came before the egg. :D
Chronosome wrote:Stubborn&Pro wrote:linktothepast wrote:The hen came first. Chicken eggs have a protein in them that only hens can make, so therefore, the chicken came first.
If a chicken can only come from a egg the egg comes first x3 the earlier hens could have developed said protein and then that gets included into their egg making process which creates a new strand, A.K.A a chicken. So the egg
It's not about the protein (well, not initially), but the mutation. The mutation (usually) happens in the germline cells. Mutations in these cells (not the other set of cells, called 'somatic cells') are passed onto the offspring. The mutation happens in DNA, which then gets transcribed into RNA, and then THAT gets translated into the proteins. A mutation in DNA does not automatically change the protein, either. A single nucleotide change does not necessarily mean a change in the protein, either. Amino acids (the things that make up proteins) have synonyms. The DNA nucleotides AAA and AAG BOTH make the same amino acid (Lysine). It's sort of like different spellings of the same word (color vs colour). Both mean the same thing, they are just spelled a little differently. The exact same protein is made, though.
The mutation (if it actually changes the protein), therefore, starts in the hen. If the mutated cell line does not end up in a fertilized egg, however, there is no change in the next generation. So the phenotypic (what you can see or measure as being a chicken) chicken came from the egg that just happened to develop from the mutated germline of the mother. It's complicated, so chocolate chip cookies if you followed me this far.
Then the mutation has to at least not affect the new chick so badly that it cannot survive to reproduce. If it survives and passes on the mutation, and if either the mutation gives some sort of advantage OR becomes fixed in the population by some other means (such as if the population is split from the main population and is founded by only a few with the mutation so it's the only option) then you can get a new species as more and more mutations build up.
lemmers2000 wrote:The egg could not have been laid and hatched without there already being a Hen and a Rooster. The Chicken came before the Egg.
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