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My teachers door: WHAT IFI TOLD YOU FIRE EXTINGUISHER INSIDE LOST AN ELECTRON THE INFORMATION YOU SEEK IS IN THE LAB DIRECTIONS? When a bond contains a metal and a nonmetal BRO, LP105 A I'D TELL YOU.,(2" A CHEMISTRY JOKE CH)ยป Loy [(CH YOU REALLY HAVE TO KEEP AN ION THEM Aver SCIENCE TEACHER spe DO YOU EVEN SCIENCE? HB CH show me the loa lor odum ydde VERES BAADED TRYING TO CONVINCE PEOPLE THAT ROCKS ARE INTERSTING BUT I KNOWI WON'T GET A REACTION Sodum h /Pamus NaH TM JUST SAYIN IF WE EVOL FROM WOLVES kidneys when toxins enter the body Aerobic respiration. "produces 34 ATP to every glucose molecule** ecrets ight, then. Keep How do ipay a How do Igetab say sike right now Schools THEN WHY ARE THERE STILL WOLVES? LOVE IS IN THE AIR? Cats are liquids. Anaerobic mitochendria is the verliouse al the cel CAN'T TELL IF BIOLOGY FALSE NITLOGEN OYGEN ARGON AND CARSON DIOKIDE ARE IN THEAIR espiration Uquids take theshapeol the container while maintaintng a constant volume That's RiSecatsarellquid The first cell that underwent mitosis must have been like The deal of a lifetime Otalked about the survival of the fittest OR FOREIGN LANGUAGE IFIWEREA DI M NAMEWOULD BE ENYME EXCSUGN OA st evol lor Charles Darwin BECAUSE IN ATWAYS- GREAKING IT DOWN Before the Hunger Games YOU ARE LIVING, YOU OCCUPY SPACE YOU HAVE A MASS Gunna teli my kids that this was Watson and Crick Fire DNA: extinguisher, RNA: Students: Are viruses living? Biology Teachers: Boss it says here thet your translation silla ere eceptional That right" Boss Okay, ler's see them Water YOU MATTER Area of low AAAAAAMAAA concentration quand pen you tel DNA wyou cant make me you don Well yes, but actually no budy Cels uring Ms guard Yea of mask to eveal tochondria ackuahy i do can I capy your homework? -RNA Deaxyribonucleic acid (yeah ut change it up a bit sot dbesn't look cbvous you copled -DNA Lets Spit Up Gan o -RNA Everyone: "thanks trees for axygen Phytoplankton: When you exerss and your body ees more ATP energy to function HETEROZYGOATS Just allele uneven I WISH IWAS ADENINE Kowalski, s SOI COULD GET PAIRED WITH U when u swallow the seed and now a plant's gonna grow in u BIOLOGY INSTRU When you share a dope science meme but nobody laughed TOAPHYSICIST YOU'RE A 10? Whal dd the cell say to the There seems to be no sign of Intelligent life anywhere. You're SIeppng on m to ON THE PHISCALE MAYBE, CAUSE YOU BASIC students on the chemical elements cells test us states Be BCNOFNa Ak A Mg SPSCK VC Pe HEY GIRL DO YOU LOT WATER? a De HI 1d n la Ne WHER VOUR DNATLET COMES ACK I understand nothing SeY Zr Te Rs Ra Pd Ag Ca Sa Sh Te1 X Ce Ba Ce. Pr Pa Sam Ea GA Th Dy Ha &TM TD La HITe W Re Os Ir Pt Aa la T ANARs Fr Rs Ac Th U p Pa Am Cm Al Ar Ca Ks Ky Me Ma Se Ma Ce Ga MI Ma Nv N Mo la Pa N Nm Ny Ne THE MOMENT WHEN YOU REALISE A THE GOOD SCIENCE MEMES La Nd Mt Oh Ok Or Ri Sd Ta Tx Md F B L Uap Upt C g Da ts Va Wa Wv WI Wy CY Les Une A AS VOU ARL APARESE THAT MEANS YO LOVE 80 % OF M Me: Can I have the symbol for nobelium? Friend: NO ARGON Me hemoglobin Scientists: so is light a particle or a wave? LIGHT BE LIKE NY PO carbon monoxide Einstein: PARTICLE WAVE AR right, then Keep your Secrets NOT EVEN CARBOM-14 When you're an antibioticresistan bacteria and you hear people don beleve in evolution TE CELLS Oxygen WOULD DATE YOU MITOCHONDRIA POWTR oxygen RITOCSONDRA IS THE POWERHOUSE OF THE CELL RirVENTISING SIOSODON3 3NISA BECAUSE YOU KNOW SEX CELLS FIREEXTINGUISH 11 111 1 My teachers door

My teachers door

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My teacher covered her door in science memes: WHAT IFI TOLD YOU FIRE EXTINGUISHER INSIDE LOST AN ELECTRON THE INFORMATION YOU SEEK IS IN THE LAB DIRECTIONS? When a bond contains a metal and a nonmetal BRO, LP105 A I'D TELL YOU.,(2" A CHEMISTRY JOKE CH)ยป Loy [(CH YOU REALLY HAVE TO KEEP AN ION THEM Aver SCIENCE TEACHER spe DO YOU EVEN SCIENCE? HB CH show me the loa lor odum ydde VERES BAADED TRYING TO CONVINCE PEOPLE THAT ROCKS ARE INTERSTING BUT I KNOWI WON'T GET A REACTION Sodum h /Pamus NaH TM JUST SAYIN IF WE EVOL FROM WOLVES kidneys when toxins enter the body Aerobic respiration. "produces 34 ATP to every glucose molecule** ecrets ight, then. Keep How do ipay a How do Igetab say sike right now Schools THEN WHY ARE THERE STILL WOLVES? LOVE IS IN THE AIR? Cats are liquids. Anaerobic mitochendria is the verliouse al the cel CAN'T TELL IF BIOLOGY FALSE NITLOGEN OYGEN ARGON AND CARSON DIOKIDE ARE IN THEAIR espiration Uquids take theshapeol the container while maintaintng a constant volume That's RiSecatsarellquid The first cell that underwent mitosis must have been like The deal of a lifetime Otalked about the survival of the fittest OR FOREIGN LANGUAGE IFIWEREA DI M NAMEWOULD BE ENYME EXCSUGN OA st evol lor Charles Darwin BECAUSE IN ATWAYS- GREAKING IT DOWN Before the Hunger Games YOU ARE LIVING, YOU OCCUPY SPACE YOU HAVE A MASS Gunna teli my kids that this was Watson and Crick Fire DNA: extinguisher, RNA: Students: Are viruses living? Biology Teachers: Boss it says here thet your translation silla ere eceptional That right" Boss Okay, ler's see them Water YOU MATTER Area of low AAAAAAMAAA concentration quand pen you tel DNA wyou cant make me you don Well yes, but actually no budy Cels uring Ms guard Yea of mask to eveal tochondria ackuahy i do can I capy your homework? -RNA Deaxyribonucleic acid (yeah ut change it up a bit sot dbesn't look cbvous you copled -DNA Lets Spit Up Gan o -RNA Everyone: "thanks trees for axygen Phytoplankton: When you exerss and your body ees more ATP energy to function HETEROZYGOATS Just allele uneven I WISH IWAS ADENINE Kowalski, s SOI COULD GET PAIRED WITH U when u swallow the seed and now a plant's gonna grow in u BIOLOGY INSTRU When you share a dope science meme but nobody laughed TOAPHYSICIST YOU'RE A 10? Whal dd the cell say to the There seems to be no sign of Intelligent life anywhere. You're SIeppng on m to ON THE PHISCALE MAYBE, CAUSE YOU BASIC students on the chemical elements cells test us states Be BCNOFNa Ak A Mg SPSCK VC Pe HEY GIRL DO YOU LOT WATER? a De HI 1d n la Ne WHER VOUR DNATLET COMES ACK I understand nothing SeY Zr Te Rs Ra Pd Ag Ca Sa Sh Te1 X Ce Ba Ce. Pr Pa Sam Ea GA Th Dy Ha &TM TD La HITe W Re Os Ir Pt Aa la T ANARs Fr Rs Ac Th U p Pa Am Cm Al Ar Ca Ks Ky Me Ma Se Ma Ce Ga MI Ma Nv N Mo la Pa N Nm Ny Ne THE MOMENT WHEN YOU REALISE A THE GOOD SCIENCE MEMES La Nd Mt Oh Ok Or Ri Sd Ta Tx Md F B L Uap Upt C g Da ts Va Wa Wv WI Wy CY Les Une A AS VOU ARL APARESE THAT MEANS YO LOVE 80 % OF M Me: Can I have the symbol for nobelium? Friend: NO ARGON Me hemoglobin Scientists: so is light a particle or a wave? LIGHT BE LIKE NY PO carbon monoxide Einstein: PARTICLE WAVE AR right, then Keep your Secrets NOT EVEN CARBOM-14 When you're an antibioticresistan bacteria and you hear people don beleve in evolution TE CELLS Oxygen WOULD DATE YOU MITOCHONDRIA POWTR oxygen RITOCSONDRA IS THE POWERHOUSE OF THE CELL RirVENTISING SIOSODON3 3NISA BECAUSE YOU KNOW SEX CELLS FIREEXTINGUISH 11 111 1 My teacher covered her door in science memes

My teacher covered her door in science memes

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watson and crick: a suggest that the answer is yes. been observed when prebiotic con- entally, In follow-up experiments nolecules by incubating activated g were observed. These data would metabolism model (introduced in volution of nucleic acids. any experiments, there is a strong bonucleotides and deoxyribonuc ing chemical evolution, they and RNA without protein-based ucleie acids look like, and what tructure and function of DNA re and function of RNA 4.2 DNA S By analyzing the nitrogenous bases in DNA samples from dif ferent organisms, Erwin Chargaff had established two empiri cal rules (1) The number of purines in a given DNA molecule is equal to the number of pyrimidines, and (2) the DNA mol- ecule has an equal number of T's and A's, and it has an equal The primary structure ot DNA is somewhat similar to the pri mary structure of proteins. Proteins have a peptide bonded backbone with a series of R-groups that extend from It DNA molecules have a sugar-phosphate backhone, created by phos- phodiester linkages, and a sequence of any of four nitrogenous bases that extend from it number of e's and G's. Like proteins, DNA also has secondary structure. But while the a-helices and B-pleated sheets of proteins are formed by hydrogen bonding between groups in the backbone, the second ary structure of DNA is formed in a very different way, Let's look at details of this structure and how it relates to DNA's function as an information-carrying molecule : By bombarding DNA with X-rays and analyzing how it scat- tered the radiation, Rosalind Franklin and Maurice Wilkins had caleulated the distances between groups of atoms in the molecule. The technique they used is called X-ray erystallography (see BioSkills 6 for an introduction to this technique). The scattering patterns showed that three dis- tances were repeated many times: 0.34 nanometer (nm), 20 nm, and 3.4 nm Because the measurements repeated, the researchers inferred that DNA molecules had a regular and repeating structure. The pattern of X-ray scattering suggested ERSTANDING rs that consist of a sugar, a phosphate form nucleic acids through formation es between the 3' hydrot on one What Is the Nature of DNA's that the molecule was helical, or spiral, in nature Secondary Structure? The discovery of DNA's secondary structure, announced in 1953, ranks among the great scientific breakthroughs of the twentieth century, James Watson and Francis Crick presented their celeand explain both Chargafrs rules a Based on this work, understanding DNA's strueture boiled down to understanding the nature of the helix involved What type of helix would have a sugar-phosphate backbone tvated nucleotides are added to the century. James Watson and Francis Crick presented their cele- brated model for the secondary structure of DNA in a single page that was published in the scientific journal Nature d diagram of the phosphodiester cleotides, indicate the 5' โ†’ 3' re the next nucleotide would be hain des are activated in cells for incorpora y is this activation required? DNA Strands Form an Antiparaltel Double Helix Watson and Early Data Provided Clues Watson and Crick's model was aCrick began by analyzing the size and geometry of the three hypothesis based on a series of results from other laboratories. They were trying to propose a secondary structure that could explain several important observations about the DNA found in cells: nueleotide components: deoxyribose, phosphate, and base. The bond angles and measurements suggested that the dis tance of 2.0 nm represented the width of the helix and that 0.34 nm was likely to be the distance between bases stacked in Chemists had worked out the structure of nucleotides and aspiral. knew that DNA polymerized through the formation of phos- phodiester linkages. Thus, Watson and Crick knew that the molecule had a sugar-phosphate backbone nd one of the bases in Figure 4 leis called a r, a hase, and one or mare phosphate How could they make sense of Chargaff's rules and the 3.4-nm distance, which appeared to be exactly iO times the dis- tance between a single pair of bases? and three phosphate groups is called a m C CHAPTER 4 Nuoleic Acids and the RNA World 97 21 likes While others are out partying on a Saturday night, I'm in here trying to get that 4.0 GPA. View all 2 comments SEPTEMBER 15, 2018
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