Thought on Evo-Devo:
Ontogeny recapitulates phylogeny.... its relationship: Drosophila with interesting mutations: homeotic mutations... I wonder about how could they not be intimately connected...imagine the entire architecture changing ( morphing) ...would the living animal know its about to change? how does a caterpillar know its about to change into a butterfly....it knows somehow...however, not an exact example of the fruit fly...huge mutations do appear...and their purpose? The gene appears twice, one carries a normal function, while the other mutates...perhaps making it more " fitter?" The notion of genes being a " symphony of expression," speaks to its ability to respond to certain cues......more specifically what notes? and how crucial are these "master genes," in control? if all the branches of species have them....how does the replication of master genes occur? When it comes to diversity, perhaps this is an example of how a replica adapted for necessary survival.....
What remains a mystery...what mechanism account for genetic programs to be in place to begin with? and what situations bring variations? I believe that DNA responds to light and sound frequency... but that is another story..
How Darwinism matter to me? I do not agree with the "fittest," construct... I read " The Origin of Species," when I was 17 years old.. I thought that perhaps his findings were imperative for his time..however, defining "advantageous traits," became a construct I disagreed with.
.....
I have to admit I would rather study newer concept of fast-paced evolution or regressive traits... The "De Novo genes," continue to cling to existence which were not accounted for in Darwin's findings....
No comments:
Post a Comment