10:00
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/nkJmRWn6y9A/0.jpg)
Adenine Guanine ALL DNA PO4 SHAPES 2 MAY1910
Adenine Guanine ALL DNA PO4 SHAPES 2 MAY1910
(Oxygen Balloons (TWO for O2) for first minute or so).... I'm bragging! This is cool! NO NUMBERS! Just shapes and colors to draw molecules. CHON are used exclusively for amino acid backbones (and P for RNA-DNA) and each has a unique number of bonds the shapes correspond to the number of bonds! Just look and learn (or DRAW n' LEARN) (You can correct yourself and I show by my mistakes and second guessing....)See ....ScienceIsGOLDen.com ....for printouts you can just color in, connect the dots, even trace it out and hang on the refridgerator!...This is what the kids in college don't fully get, THE CHEMICAL Structure...the lines they use are boring and not very descriptive AND IN BLACK AND WHITE...We need to use color and the 3rd DIMENSION! this is hokey but again you can draw this on a napkin so it's practical! (Sorry if you're color blind...)...Enjoy! GOD BLESS- Randy Ribose (aka. Cosmic Ray-The Quantum Mechanic)
10:00
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/jfbTSf6vkQ0/0.jpg)
Adenine Guanine cytosine DNA PO4 SHAPES-endMay2010
Adenine Guanine cytosine DNA PO4 SHAPES-endMay2010
I'm bragging! This is cool! NO NUMBERS! Just shapes and colors to draw molecules. Since CHON are used exclusively for amino acid backbones (and P for RNA-DNA)and each has a unique number of bonds the shapes correspond to the number of bonds! Just look and learn (or DRAW n' LEARN) (You can correctyourself and I show by my mistakes and second guessing....)See ....ScienceIsGOLDen.com ....for printouts you can just color in, connect the dots, even trace it out and hang on the refridgerator!...This is what the kids in college don't fully get, THE CHEMICAL Structure...the lines they use are boring and not very descriptive AND IN BLACK AND WHITE...We need to use color and the 3rd DIMENSION! this is hokey but again you can draw this on a napkin so it's practical! (Sorry if you're color blind...)...Enjoy! GOD BLESS- Randy Ribose (aka. Cosmic Ray-The Quantum Mechanic)
1:53
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/-8XjEUebj8w/0.jpg)
Mutagenic Replication of O6-methyl-guanine Lesion
Mutagenic Replication of O6-methyl-guanine Lesion
Chemicals causing various types of alkylation (methylation, ethylation etc.) of DNA bases are widespread mutagens and carcinogens. The most mutagenic lesion is O6-methyl-guanine that could be paired with cytosine or thymine evading the proof-reading capacity of a high-fidelity DNA polymerase. This video shows various steps of replication involving O-6-methylguanine and thymine pairs (ref. Warren et al. PNAS, v103, p19701: 2HHX.pdb, 2HHW.pdb, 2HW3.pdb, 2HHV.pdb, 2HHQ.pdb).
10:00
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/7zaV9ih3TLE/0.jpg)
Cytosine Uracil Adenine Guanine DNA cutouts 2-3 19MAY10
Cytosine Uracil Adenine Guanine DNA cutouts 2-3 19MAY10
Cut outs of DNA by shapes.... I'm bragging! This is cool! NO NUMBERS! Just shapes and colors to draw molecules. Since CHON are used exclusively for amino acid backbones (and P for RNA-DNA)and each has a unique number of bonds the shapes correspond to the number of bonds! Just look and learn (or DRAW n' LEARN) (You can correctyourself and I show by my mistakes and second guessing....)See ....ScienceIsGOLDen.com ....for printouts you can just color in, connect the dots, even trace it out and hang on the refridgerator!...This is what the kids in college don't fully get, THE CHEMICAL Structure...the lines they use are boring and not very descriptive AND IN BLACK AND WHITE...We need to use color and the 3rd DIMENSION! this is hokey but again you can draw this on a napkin so it's practical! (Sorry if you're color blind...)...Enjoy! GOD BLESS- Randy Ribose (aka. Cosmic Ray-The Quantum Mechanic)
10:00
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/5w1UQCQJ894/0.jpg)
Guanine Adenine nucleic acids by Element SHAPE S-DNA-3
Guanine Adenine nucleic acids by Element SHAPE S-DNA-3
Using Schroeder Diamonds for carbon this is an easy way to draw complex molecules like the nucleic acid bases.
5:49
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/nsqiCP6ZDuY/0.jpg)
KSI Guanine vol.1
KSI Guanine vol.1
This vid is a motage of a clan ksi the squad guanine a kick ass clan and awesome montage! rate 5 star ad subscrib more coming soon!
7:26
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/aFcfygkMM0I/0.jpg)
Justice with Michael Sandel - CCCB: Bioethics: Designer children
Justice with Michael Sandel - CCCB: Bioethics: Designer children
Should parents be able to "design" their children based on genetic preferences? What are the dangers of turning children into commodities and childbearing into an extension of the consumer society? From a lecture at the Centre of Contemporary Culture of Barcelona, as edited for broadcast on Spanish television (Soy Camara).
9:58
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/PjZW2HYgyKU/0.jpg)
Guanine Adenine Nucleic Acids DNA Diamonds 30jun2010
Guanine Adenine Nucleic Acids DNA Diamonds 30jun2010
Easy to draw Bio Molecules using the Schroeder Diamond Techniques of Carbon Diamonds, Nitrogen Aliens, Oxygen Circles and Hydrogen Dots www.ScienceIsGolden.com has more...Thanks! Feedback and I'll post more info I have a difficult time editing and converting so it's a search I apologize! GOD BLESS Cosmic Ray THe Quantum Mechanic
4:45
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/KMEaZgsawKE/0.jpg)
MMIGS-06: Guanine in Sketchup
MMIGS-06: Guanine in Sketchup
Modeling Molecules in Google Sketchup Video #6: Guanine in Sketchup. This video shows some techniques/tips/tricks for cloning one molecular model from another. The first video in this series is: MMIGS-00: Basic Sketchup Skills for Modeling Molecules youtu.be
3:40
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/ckZEds5taX4/0.jpg)
DNA Song
DNA Song
DNA Song. Here is a song I made for a student to help the study. I hope you enjoy! Here we go, genetic code, determines how you live Oh size, shape, color and all makes you who you is You should know the chromosomes has thousands of genes AT and GC makes types of proteins During synthesis, the cell uses info From a gene on a chromosome Out in the cytoplasm and on the ribosomes Info needs to get out the nucleus It's the DNA, in ya It's the genetic code, in ya Paring Nitrogen bases, in ya The double helix ladder, in ya Oohh Adenine goes with Thymine And Guanine pairs with Cytosine Matched pairs of DNA, bases How cells produce proteins Ooh, no, no, no Send, send, send the code out to the cytoplasm This genetic messenger is ribonucleic acid RNA, DNA, differ in many ways, yeah RNA molecules look like one side or strand Ribonucleic acid has a different sugar Has uracil instead of thymine Messenger RNA sends info out to the cytoplasm Transfer adds amino acids to proteins It's the DNA, in ya It's the genetic code, in ya Paring Nitrogen bases, in ya The double helix ladder, in ya Oohh Adenine goes with Thymine And Guanine pairs with Cytosine Matched pairs of DNA, bases How cells produce proteins Messenger RNA production Ooh, attaches to a ribosome Transfer attaches to messenger Ribosome releases, the completed protein chain But don't you know it's the DNA, in ya It's the genetic code, in ya Paring Nitrogen bases, in ya The double helix ladder, in ya Oooh Adenine goes with Thymine <b>...</b>
12:05
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/pfv2dWYeXX4/0.jpg)
Element Shapes O2 N2 AminoAcid protein chains DNA RNA guanine Cytosine
Element Shapes O2 N2 AminoAcid protein chains DNA RNA guanine Cytosine
These are the topics that should be learned since every other concept is built on these princilples in chemistry. Element Shapes makes it easy to remeber the chemical structure and atoms in a molecule... O2 is only 21.3% of what we breate the other major molecule is the triple bonded diNitrogen N2 (at 78% of atmosphere)... Amino Acids are the proteins that form chains.... DNA RNA guanine Cytosine
1:32
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/LD7xva675RU/0.jpg)
Human Physiology : What Is Adenine?
Human Physiology : What Is Adenine?
Adenine, along with guanine, thymine and cytosine, makes up DNA structures and is responsible for helping the body metabolize energy. Find out about the molecular structure of adenine with information from a science teacher in this free video on physiology and the human body. Expert: Janice Creneti Bio: Janice Creneti has a BS in secondary science education and a BA in biology from Boston University. Filmmaker: Christopher Rokosz
2:20
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/bxrCYhCyCYs/0.jpg)
Purine Salvage Enzyme HGPRT Movie in HD
Purine Salvage Enzyme HGPRT Movie in HD
One biochemical cause of gout is decreased levels of functional HGPRT, the enzyme shown here. Gout can also result from episodes of massive necrosis, renal insufficiency and other biochemical defects. Gouty arthritis results when uric acid crystallizes in the joint synovial fluid where it may be phagocytized by macrophages leading to cell lysis and inflammation. In the presence of HGPRT, guanine and hypoxanthine are salvaged by the transfer of a phosphate from PRPP to form GMP and IMP respectively. Decreased levels of functional HGPRT thus results in poor "salvage" of Guanine and Hypoxanthine. If this enzyme is defective, levels of PRPP may also be elevated. Both of these factors can cause increased flux through the de novo purine synthesis pathway and thus more uric acid formation. In the absence of HGPRT, unphosphorylated guanine and hypoxanthine are degraded by guanase and xanthine oxidase respectively; this results in the formation of xanthine, which is converted to uric acid via the enzyme xanthine oxidase. Excess conversion of xanthine to uric acid can lead to gout. The hereditary basis of gout is attributable to the location of the HGPRT gene on the X-chromosome. As one might expect, this is more common in males. Complete deficiency of HGPRT results in the tragic Lesch-Nyhan syndrome. Gout is treated with allopurinol, an inhibitor of the enzyme xanthine oxidase, which prevents the conversion of xanthine to uric acid.
0:48
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/HvJlnujmYcg/0.jpg)
Chargaff's Ratios
Chargaff's Ratios
Erwin Chargaff found that in DNA, the ratios of adenine (A) to thymine (T) and guanine (G) to cytosine (C) are equal. This parity is obvious in the final DNA structure. Originally created for DNA Interactive ( www.dnai.org ). TRANSCRIPT The DNA molecule is made up of very long chains of the 4 bases: A, C, G and T. In 1950, Erwin Chargaff published a paper stating that in DNA of any given species, the ratio of adenine to thymine is equal, as is the ratio of cytosine to guanine. This is known as Chargaff's ratios and it was a crucial clue that helped solve the structure of DNA. Chargaff's ratios are universal: all forms of life obey this rule. Only the balance of AT pairs and CG pairs varies between species.
1:56
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/tRcpDWJHoX4/0.jpg)
Custom Orders #77 - #78
Custom Orders #77 - #78
*77* Font: Guanine (Dafont.com) Colors: Blazing Black Diamond Dust Silver Maroon (Burgundy) Decals/Logos: Anime logo, a "Z", Bungi Column Logo *78* Font: Impact on (43) (92) Colors: Blazing Black "Pittsburgh Gold" Combo (Bronze)(Inca Gold)(Silver) Decals/Logos: (Pittsbugh) Penguin Logo, Steelers Logo, Pirates Logo
0:59
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/Le3yUMunlZA/0.jpg)
DNA 3D Structure Model with labels
DNA 3D Structure Model with labels
This is a quick and dirty model that I created in Maya. The deoxyribose nucleic seen here represents a basic interpretation of the chemical bonds that would be present in a single strand or double Helix. I colored the anti parallels both red and blue to simulate their adjacent qualities as they spiral upwards and string along and bond the genes themselves. The genes can be seen as Thymine and Adenine/ Cytosine and Guanine. These are the only formations these gene patterns can form therefore, Thymine will only bond with Adenine, and Cytosine will only bond with Guanine. Not appearing in this animation are the basic hydrogen bonds that connect the nucleotides. Also note that the genes coils themselves are elongated and therefore are NOT supercoiled. Well thats enough yammering, the background tune is provided by "The Octopus Project"
3:38
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/dIZpb93NYlw/0.jpg)
DNA Replication Song
DNA Replication Song
Biology Project (Just in case you didn't know... We worked on this at like 4am in the morning... yes..yes... LAST MINUTE project!! but turned out really well!!) Background Instrumentals: Back Street Boys (I Want it That Way) Lyrics: Deox / y-ribo / nuclei / ic-acid / is made from two strands, a double helix So then, the strands come apart, Nitrogen bases, they start to unzip By DNA helicase H2 bonds Between adenine and thymine H2 bonds Between cytosine and guanine H2 bonds The ladder structure is strongest in Phosphodiester links DN / A Pol-ym / er-ase Builds the new strand From the / 5" to 3" Direction H2 bonds Between adenine and thymine H2 bonds Between cytosine and guanine H2 bonds The ladder structure is strongest in Phosphodiester links Now I can see that its replicating In a way thats quite interesting (YEAH!) No matter the distance, the leading strand Is followed by the lagging one Finally...the ligase Seals up all the breaks A new....a new....a new....DNNNNNNNNNNA! And it starts again!! Oh, how I love bi-olo-gy (yeah yeah yeah) It's better than chemistry And next time I have to go pee (I know) what's happening inside of me
5:09
![](http://web.archive.org./web/20120501144819im_/http://i.ytimg.com/vi/BdXAldquzM4/0.jpg)
A New Cellular Clue to Leukemia
A New Cellular Clue to Leukemia
Megakaryocytes are cells in the bone marrow responsible for making platelets, which are necessary for blood clotting. One mystery regarding megakaryocytes is how they achieve their enormous size and large number of nuclei. Instead of the single nucleus that a normal cell possesses, a megakaryocyte may contain 64 or more nuclei. This results from a process known as endomitosis, in which the DNA divides but the cell doesn't. Megakaryocytes do not undergo cytokinesis—the separation of the dividing cell into two distinct cells—after the DNA divides. A March 2012 paper by Yale School of Medicine authors in the journal Developmental Cell elucidates several of the mechanisms that take place to prevent cytokinesis from occurring. These findings are relevant not only to normal hematopoiesis and the maturation process of normal megakaryocytes but also to leukemia. In megakaryoblastic leukemia, for example, cells don't fully mature. The authors are now investigating the link between normal megakaryocytopoiesis and the pathology in megakaryocytic leukemia. Publication: Role of RhoA-Specific Guanine Exchange Factors in Regulation of Endomitosis in Megakaryocytes; Developmental Cell (2012), doi:10.1016/j.devcel.2011.12.019 Authors: Yuan Gao, Elenoe Smith, Elmer Ker, Phil Campbell, Ee-chun Cheng, Siying Zou, Sharon Lin, Lin Wang, Stephanie Halene, and Diane S. Krause Publication: Role of RhoA-Specific Guanine Exchange Factors in Regulation of Endomitosis in Megakaryocytes; Developmental <b>...</b>