ROAR 5-4-3-2-1 #8

Hey everyone, this is going to be a quick post because I have way too much homework and so little time. It's getting late and I have other thigns to do to catch up. ^^ Sorry, thanks fro understanding. See you soon again. BTW, Sorry no posts for my PB (personal blog) for awhile. I'm too busy. thanks Good bye!!


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

5.Comments:

* The term melanism is refering to the conditions where an individual or a species display the broader area of the color black or dark in a greater/ larger amount then the other colors within the organism. Melanin pigment are the complex chemicals that polymers that occur in many forms. From black, brown, reddish or tan.
*Many organism have this melanism color pigment. This chemical is a benefit, it help prevent damages form ultra light rays, thermal regulations and camouflages. From mammals to insects and fishes. In mammals, there are two type of melanin that are produced by the pigment cells. One on the skin and the other of the hair, eumelanin, phaeomelanin.
* The next chapter the book explains how the melanin could change or be inrupted when DNA crosses. There are equations and everything but it's too high level for me to catch on. Sorry guys. Next they talk about rats and mice that have the shades of black to grey and so on. The gene is each mice is different, from the amino acid and the MC1R protien.
* From mice we go to Black leopards, white bears and redheads. Again we use the MC1R.. which is very confusing so I don't know how to explain it. So the Evolution of francier of patterns in the mammals of stripes and spots. So we go on back to the zebras. And the embryos of when each stripes will develope. For each species of zebras, tehir stripes come different at different times.
* HAHHA we convert back to the fruit flies, here they're explaining the spots that fruit flies encounters. It express the pigmentations of the gene that makes the species different just becasue of a spot.

4.Questions:

* Why is it all focused on the color black? Isn't ther other pigment as well for other colors, because there are other animals in different colors.
* What makes the color black in animals so important?
* Does the animals get the color from the genetic gene of their paren's genes? If so does that mean there is a disadvantage for animals taht does not have the color black on them?
* How do the zebras get the different stripes then otehr zebras? How do people recongnizes the differences?

3.Vocabulary:

*Melanoblast: an undifferentiated cell that develops into a melanophore or melanocyte.
*Mentation: mental activity.
*Correlation: mutual relation of two or more things, parts, etc.

2.Literary Term:

* ehh... I can't find any
* none

1.Overview:
* This overview is about the color black on mammals and animals, It is called melanism, there are benefits from it and it's very different I guess from other colors or something because only balck was mentioned. Anyhow, then we go to the zebras and their stripes and how long it takes for each different species to develope their stripes. Then we go back to the fruit fly and the spots on their wings.