Sunday, February 1, 2009

ROAR 5-4-3-2-1 #3

HEY HEY HEY!! ^^ HAPPY SUNDAY!. Here's another free post!^^ get your mind blogging...

The New Science Of Evo Devo: Endless Forms most Beautiful
Sean B. Carroll


5*COMMENTS:
*The continue of DNA sequences and responses, there are 2 gene logic that is 1) "the regulated use of a gene occurs through the on/off binding of a DNA binding protien;" 2) " the DNA binding protien recognizes a specific DNA sequence near a gene."P.60 Carroll. I was kind of confused at first because he was mentionaling about bacteria then he switched to a fruit fly. Which was a very good organism to experiment with.
*More information on fruit flies, and the body-building genes of their bodies. from a embryo. Then about how mutation can affect the fruit fly, like one can have a normal large multifaceted eye or one with a lack of eye tissue which express as an eyeless fly. (creepy... there was pictures that I didn't want to see...)
*Still with the flies, now it's about the hair patterns, from the starting as a larva the hedgehog fly. A mutanted one will have the denticles(hairs) all bunched together and a normal hedgehog fly will not. This was the tool kit of the paradox and one of the origins.
*Next was about the genes of making babies. With 25,000. This section was about varies of chicken, tadpoles.The embryo development in orders. There was a nice image that help supported this part of the book. There was one for the tadpole, and fly.
* Next was the geography of the embryos. Like which steps occur first, and where it will be places in the embryo. This wil be by the tool kit genes once again. They also gave you a part of directions to draw it yourself and the general logic of the embryo geogrpahy
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4.Questions:
* Are flies easy and fast developers? Like if their life span is short we can do more experiments with them.
* How long does an embryo usually develope until it is ready to leave the mom? ( I can't find a word for this.. sorry.)
* How long does it take before we can recognize the embryo of it's speicies?
* Why is the tool kit section in every section but it was so different?

3.Vocabulary words:
*Reductionism: the theory that every complex phenomenon, esp. in biology or psychology, can be explained by analyzing the simplest, most basic physical mechanisms that are in operation during the phenomenon.
*Tantilizing:having or exhibiting something that provokes or arouses expectation, interest, or desire, esp. that which remains
*Chemotherapy:the treatment of disease by means of chemicals that have a specific toxic effect upon the disease-producing microorganisms or that selectively destroy cancerous tissue. ( I kind of guessed this word right. ^^ )

2.Literary Terms:
There wasn't much of the terms I would know but I' m sure there were some. Here this section was mainly explaing the embryos and I guess I just couldn't find any.

1.Overview:
This section was bits and bits about embryos and embryologists. Mostly focused on flies and their behavoir way to develope. Also the re mapping of their embryos and I think there was something taht could connect to us humans when we were embryos as well. But I think the author wants us to figure it out ourselves but maybe he'll tell us later on the next chapters.

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