Biochemical Evidence?
I need to know the biochemical evidence of a Dragonfly, a Sponge, and a Jellyfish.
I can't find it anywhere.
Can anyonw help me before monday?
Update:I don't how much more information I can give about the question.
The packet my teacher gave me says:
biochemical eveidence includes similarities in DNA, proteins, biochemical processes. Since this information is new, being investigated currently and very technical, you do not need to get into great depth in your report. includfe whatevver relevant information you can find.
that is what my teacher told me to do in the project outline but I cannot find any information anywhere I look.
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The biochemical evidence *of what*? That they exist? That they use proteins? That they evolved? That they are eukaryotes?
Give as much details about the question as you can and we can help you better.
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Based on that description, it sounds like you are being asked to provide biochemical evidence *of evolution*. (The word "evolution" must be in the title of the packet, a subheading, something?)
Once you know that, then you can type "biochemical evidence evolution" into Google, and you will have lots of stuff to work with.
So here is are some good starting places:
http://arnica.csustan.edu/biol3020/biochemistry/bi...
http://en.wikipedia.org/wiki/Evidence_of_evolution...
http://www.talkorigins.org/faqs/comdesc/section4.h...
w.r.t. dragonflies, sponges, jellies ... this is tougher.
E.g. I found one paper
"Biochemical Evolution Associated with Antipredator Adaptation in Damselflies"
http://links.jstor.org/sici?sici=0014-3820(199912)...
But (A) this will be extremely technical ... which you can see if you read the abstract; and (B) this requires a subscription to see the entire article.
Here's one on the sponge ... again highly technical (even though they have a very clever title):
"Speculation with spiculation?—Three independent gene fragments and biochemical characters versus morphology in demosponge higher classification"
http://www.sciencedirect.com/science?_ob=ArticleUR...
They way you find these is to type (into Google)
biochemical evidence evolution +dragonfly
This is a pretty high-level assignment.
I'd go with the universal genetic code.
*All* organisms - including dragonflies, sponges, and jellyfish (as well a bacteria, humans, bananas, fruitflies, sharks, kangaroo, roses, and *everything* else) - use the same code for their DNA coding for the amino acids in proteins.
So the codon GCA codes for Alanine, and it does so in *all* these organisms. This is strong evidence that they are all descended from a common ancestor, as there is no other reason why they should share the same code: even if they all used the same nucleotides and amino acids, why should they use the same three nucleotides for amino acids in all proteins?
What kind of evidence? To be used where? You can always check the genome (karyotype, fingerprinting...)