10:31
What is DNA?
What is DNA?
Paul Andersen describes the molecular structure of DNA. He describes the major parts of a nucleotide and explains how they are assembled into a nucleic acid. The nitrogenous base, deoxyribose sugar and phosphate group make up a single nucleotide. The 5' and 3' end of DNA is described. The importance of hydrogen bonds in the 3-dimensional shape is also included.
1:04
PWI Deoxyribose vs Bezmor Round 1
PWI Deoxyribose vs Bezmor Round 1
Deoxyribose vs Bezmor BM vs Psychic
6:28
Deoxyribose
Deoxyribose
It seems kinda normal at first, until you realize that the concept is really nerdy. XD Songs used: 緋色のDance by 岸田教団＆Ｔｈｅ明星ロケッツMy Dear! by Yellow Zebra I own nothing!
1:09
DNA Animation
DNA Animation
Purple= Deoxyribose Sugar White= Phosphate Red= Thymine Blue= Cytosine Yellow= Guanine Green= Adenine
56:13
PHYSIOLOGY; REVIEW OF NUCLEOTIDES, NUCLEIC ACIDS, VITAMINS & MINERALS by Professor Fink
PHYSIOLOGY; REVIEW OF NUCLEOTIDES, NUCLEIC ACIDS, VITAMINS & MINERALS by Professor Fink
Review of Biological Chemistry, including Nucleotides, Nucleic Acids, Vitamins & Minerals. Reference is made to the components of each nucleotide: a 5-Carbon sugar (ribose or deoxyribose), a nitrogenous base, and phosphate. Purine bases (adenine & guanine) and Pyrimidine bases (thymine, cytosine & uracil) are described. Special reference is made to the high energy nucleotide, Adenosine Triphosphate (ATP), as well as AMP and ADP. Both the molecular structure of RNA is presented, and the molecular structure of DNA. Reference is made to complementary binding of bases and the Double Helix structure of the DNA. Clarification is given to the terms: Chromatids, Chromatin (uncoiled) Shape & Chromosomes (coiled-up) Shape of the DNA molecule. The principal functions of the lipid-soluble vitamins (retinol, calciferol, tocopherol & phylloquinone) & water-soluble vitamins (ascorbic acid, niacin, riboflavin & pantothenic acid) and the macronutrient minerals (calcium, phosphate, sodium & potassium) & micronutrient (trace) minerals (iron, iodine, copper & zinc). Reference is made to anti-oxidants, goiters & anemia.
62:36
BIOLOGY; INTRO TO CHEMISTRY; PART 4 by Professor Fink
BIOLOGY; INTRO TO CHEMISTRY; PART 4 by Professor Fink
Introduction to Chemistry, Part 4 by Professor Fink covers the pH Scale, Organic versus Inorganic Molecules, and introduces Carbohydrates. The lecture reviews the definition of an acid and a base, describes the pH Scale and explains the difference between a Neutralization Reaction and a Buffer Reaction. The lecture then explains the difference between Organic Molecules & Inorganic Molecules. Reference is made to the Carbon atom & covalent bonding, straight-chain carbon atoms, alcohols & aromatic hydrocarbons (including benzene). Finally, the lecture presents Carbohydrates, including 5-carbon (ribose & deoxyribose) & 6-carbon monosaccharides (glucose, fructose & galactose).
1:14
Linus Pauling--Molecular Diseases
Linus Pauling--Molecular Diseases
www.youtube.com www.encognitive.com Narrator A person afflicted with the disease has inherited two sickle cell genes from his parents. This realization, that the two genes manufacture the abnormal hemoglobin, set the stage for Dr. Pauling's entry into the field of molecular medicine. Dr. Pauling: Well, when Doctors Itano, Singer, and Wells, and I published our paper in 1949, we gave it the title: "Sickle Cell Anemia: A Molecular Disease." Now of course, in fact, one might say that any inborn error of metabolism, any hereditary disease, is a molecular disease because it involves an abnormal gene. And the gene we know, almost certainly, is a molecule of DNA, deoxyribose nucleic acid. The abnormal molecule of deoxyribose nucleic acid that is inherited by the child, prospective patient, causes the trouble for him, and the hereditary disease is accordingly a molecular disease.
50:38
DNA Replication, Recombination, Repair I
DNA Replication, Recombination, Repair I
This course is part of a series taught by Kevin Ahern at Oregon State University on General Biochemistry. For more information about online courses go to ecampus.oregonstate.edu for the rest of the courses see www.youtube.com 1. DNA consists of a double helix. Each strand of the helix is a polymer of nucleotides joined together in phosphodiester linkages that have alternating sugar-phosphate-sugar-phosphate links. On the inside of the double helix are the complementary base pairs held together by hydrogen bonds. The arrangement of the double helix is in an 'anti-parallel' fashion, meaning that one strand oriented in the 5' to 3' direction is directly paired to a complementary strand oriented in the 3' to 5' direction. Phosphodiester bonds involve linkage between the 5' phosphate group of the incoming nucleotide and the 3' hydroxyl of the previous nucleotide in the chain. 2. DNA contains four bases - A,T,C, and G arranged with A paired with T and G paired with C on the internal portion of the double helix. Hydrogen bonds stabilize these base pairs - two for the AT pair and three for the GC pair. Thus, GC pairs are harder to break than AT pairs. 3. DNA has a major and a minor groove arising from asymmetric glycosidic linkages between the deoxyribose sugar and each base in the double helix. 4. DNA has three major forms - A,B, and Z. The A and B forms are right-handed helices, whereas the Z form is a left-handed helix. The B form of DNA is the most prevalent one and contains <b>...</b>
4:12
DNA Structure
DNA Structure
Free Science Help at Brightstorm! brightstorm.com An introduction to the structure of DNA.
4:25
DNA Replication with Slipknot
DNA Replication with Slipknot
this a parody song about the process of DNA replication in the styles of Slipknot (Before I Forget) we do not own the original, we just own the remix lyrics written by Ryan Habibi, performed by Ryan Habibi and Clayton Mapelli, edited by Clayton Mapelli Lyrics - Dna, it is made up of, phosphorus And Nitrogen Bases Not to mention, Deoxyribose Double helix, twisted up In 5 and 3, DNA holds the secrets Of you and me This is a fact But how is it that DNA can divide? I really had no clue, until this term caught my eye Semi---Conservative Repli---CATION (chorus) I am made up of DNA You are made up of DNA We are made up of DNA. Deoxyribose nucleic Acid! CHORUS Starts with helicase A little enzme that Cuts the strands And makes them two Each strand has its own nitrogen base Needing its Own complementary base Semi----Conservative Repli---CATION!!! CHORUS CHORUS Adenine, it matches with thymine And cytosine, it goes with guanine DNA polymerase, it is an enzyme That brings in new bases To match up with the strands Making two new DNA! CHORUS CHORUS CHORUS (8) YEAHS OOOOOHHHHH
3:07
Wessling's Period 5, DNA Rap (Firework)
Wessling's Period 5, DNA Rap (Firework)
By: Chandni and Taylor (Lyrics below) DNA is nucleic acid That contains the sugar Deoxyribose Did you know that it Contains units Called nucletides They are so cool! Each nucleotide has three parts One is a phosphate group Another is a nitrogen base And the last part is deoxyribose A 5-carbon sugar In order to live and survive The parents' DNA divides And each set collides To make a new person alive DNA makes everyone unique! So, for the next generation Replicate you DNA By using your polymerase It'll make a perfect copy And make sure there are no mistakes Replicate you DNA To keep the population going In each double helix, there are four nitrogen bases Guanine and Cytosine, Adenine and Thymine They are held up by strong covalent bonds But in the middle there is a weak hydrogen bond DNA and protein packed together forms chromatin Chromatin consists of DNA that's coiled 'round histones Then it wraps around more, and becomes supercoils Now you have chromosomes In order to live and survive The parents' DNA divides And each set collides To make a new person alive DNA makes everyone unique! So, for the next generation Replicate you DNA By using your polymerase It'll make a perfect copy And make sure there are no mistakes Replicate you DNA To keep the population going DNA DNA makes you-you-you DNA DNA makes you-you-you
7:26
DNA Rap
DNA Rap
I had to make a rap for Biology. So I decided to go out of my way and make a video. The second part is just for fun. Hope you enjoy. Deoxyribose nucleic acid thats whats it Nucleotides are made to fit DNA is what we have to do DNA makes up me and you Double helix twisted up and down Nucleotides keep us whole and round Prymidines and purines go great together While the backbone keeps the DNA in place forever Thymine with the Adenine Cytosine with the Guanine These are the Nitrogen bases Without DNA you cant make faces Deoxyribose sugar is in DNA And Ribose sugar is in RNA These two things are nucleic acids All DNA in your body put together is massive Single ring structures are pyrimidines Larger double ring structures are purines One of 3 components of the nucleotides Is a phosphate group, thats no lie (Chorus) Because this is DNA, DNA, DNA This is the DNA rap. This is DNA, DNA, DNA This is the DNA rap. DNA replication lets us make little copies Without this part we cant make little Tommies Complimentary base pairs are easy A to T and G to C Then theres the template strand They are surely not bland DNA polymerase enzymes Make covalent bonds between new nucleotides If you want to unwind the DNA Use a helicase enzyme its the only way Replication Fork in the nucleus forms During DNA replication copies are made for sure Nitrogenous base pairs held together by Hydrogen bonds thats no lie (repeat chorus)
3:11
DNA Rap: Got Urself DNA
DNA Rap: Got Urself DNA
This is a project I had to do for Biology 12. We had to come up with a rap explaining DNA and how DNA Replication works. Lyrics: My name is JYO and I'm talking about DNA You better listen up cause I'm not getting paid This is straight from the brain lyrically homemade And I rap from the heart cause I wanna good grade Chorus: Trying to Duplicate, I hope you got urself DNA Wanna Translate, I hope you got urself DNA Trying to Create, I hope you got urself DNA Now lets talk about this DNA I'll name some parts for you if that's okay So listen up and hear what I say And if you miss something hit that button replay Deoxyribose nucleic acid is the name Made up of nucleotides the textbook claims With Deoxyribose sugar and a phosphate group And nitrogen base up in a double helix loop Purines are Adenine and Guanine Pyrimidines are Thymine and Cytosine Purines have a single simple sugar formation Pyrimidines have a double ring sugar formation They are supported by a sugar-phosphate backbone Which is like the Nitrogen Bases Throne Mind you this is all homegrown, well known, well shown, your own, up in a temperate zone Chorus Now lets go on to this DNA replication This process is enforced by our living population It is started off by our DNA Helicase Which is the enzyme we use in the first phase Hydrogen bonds break and the DNA separates Into two template strands which we use to procreate Then the complimentary base pairing activates And the nucleotides come in and pair at a fast rate <b>...</b>
7:23
TCA Cycle Overview Lecture
TCA Cycle Overview Lecture
TCA Cycle Overview TCA cycle was discovered by Hans Adolf Krebs in 1937. The citric acid cycle — also known as the tricarboxylic acid cycle (TCA cycle), the Krebs cycle It is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidization of acetate derived from carbohydrates, fats and proteins into carbon dioxide and water In eukaryotic cells, the citric acid cycle occurs in the matrix of the mitochondrion. Bacteria also use the TCA cycle to generate energy, but since they lack mitochondria, the reaction sequence is performed in the cytosol with the proton gradient for ATP production being across the plasma membrane rather than the inner membrane of the mitochondria. "TCA Cycle" biochemistry "Citric Acid Cycle" Educational Tutorial Organic Molecules Carbohydrates monomers sugars carbon hydrogen oxygen hydroxyl group dehydration reaction glucose fructose monosaccharides disaccharides sucrose lactose starch glycogen cellulose polysaccharides galactose ribose deoxyribose RNA DNA hydrolysis cell biology biotechnological biotechnology bioinformatics
0:18
3.3.1 Outline DNA Nucleotide Structure.m4v
3.3.1 Outline DNA Nucleotide Structure.m4v
3.3.1 Outline DNA nucleotide structure in terms of sugar (deoxyribose), base and phosphate A DNA nucleotide is made of three parts. A phosphate group (represented in the model as the red circle), a pentose sugar known as deoxyribose (in the model as the pentagon) and a nitrogenous base (the rectangle).
0:41
3.3.3 Outline how DNA Nucleotides are joined together to form a single strand.m4v
3.3.3 Outline how DNA Nucleotides are joined together to form a single strand.m4v
3.3.3 Outline how DNA nucleotides are linked together by covalent bonds into a single strand. DNA nucleotides to recap are made up of a phosphate group, deoxyribose and a nitrogenous base (A, T, C or G). Covalent bonds (shown in the model as the purple lines) join together the deoxyribose with both the nitrogenous base and the phosphate group. This therefore joins adjacent nucleotides together to form a single strand. The model shows two nucleotides joined together.
8:13
Following DrSim0n's Trail of Absurdity
Following DrSim0n's Trail of Absurdity
Illustrations courtesy of linkmeup2003... Here are my points... in order of appearance: 1. My point was that it wouldn't be extremely unlikely for the microspheres to run into a single tar versus them clumping together and "going away" because they are in the *ocean*, surrounded by a lot of water, and would have to find each other to clump together. If you argue that they still *will* find each other... then you must concede that the nucleotides will "find each other" as well... and while it might take a little longer to bond than tars, they will still be bonding together. They will then not be able to get into the microsphere because the chain of nucleotides is too big. 2. Your article speaks about *only* hexose... and then it goes on to say that it *might* be able to explain a *theoretical* basis for a *plausible* mechanism behind the homochirality of ribose and deoxyribose. That means that nucleotides *can* form into a pure-D mixture naturalistic ally? Nope... just that they really believe it, and are willing to jump to that conclusion based upon nothing but a guess. Nice try... And then if you say that they are *catalysts*, and that it would just take more time to catalyze ribose or deoxyribose, then why can't they demosntrate a *small* change over a *small* time. And then... if it takes a *super* long time, you have to worry about racemization. 3. A philosopher, or mathematician, who creates a theory like ID which is falsifiable, and can be falsified by observations <b>...</b>
4:59
Organic Molecules Carbohydrates | Cell Biology | Biochemistry
Organic Molecules Carbohydrates | Cell Biology | Biochemistry
Segment from the program Biochemistry II: Carbohydrates, Proteins, Lipids, and Nucleic Acids. To purchase this program please visit www.greatpacificmedia.com
3:07
DNA Structure
DNA Structure
"Two DNA strands intertwine to form a double helix. Each strand has a backbone composed of phosphates and sugars to which the bases are attached. The bases form the core of the double helix, while the sugar/phosphate backbones are on the outside. The two grooves between the backbones are called the major and minor groove based on their sizes. Most proteinDNA contacts are made in the major grove, because the minor groove is too narrow. The DNA backbone is assembled from repeating deoxyribose sugar units that are linked through phosphate groups. Each phosphate carries a negative charge, making the entire DNA backbone highly charged and polar. A cyclic base is attached to each sugar. The bases are planar and extend out perpendicular to the path of the backbone. Pyrimidine bases are composed of one ring and purine bases of two rings. Adjacent bases are aligned so that their planar rings stack on top of one another. Base stacking contributes significantly to the stability of the double helix. In a double helix, each base on one strand is paired to a base on the other strand that lies in the same plane. In these base pairing interactions, guanine always pairs with cytosine, and thymine with adenine. A GC pair is stabilized by three hydrogen bonds formed between amino and carbonyl groups that project from the bases. In contrast, an AT pair is stabilized by two hydrogen bonds. The specificity of base pairing—that is, C always pairing with G, and A always pairing with T—ensures <b>...</b>
