!n 3. They will learn about the structure of DNA, including its double. Although each human has a unique DNA sequence, the DNA in all of us is about 99.9% identical! DNA Replication Recap Answer Key by The Amoeba Sisters- Amoeba Sisters Key. Sort your candies by color. Because of, This model is a simple way to study DNA structure. The step-by-step directions walk the students through the worksheet. BE AWARE THIS ACTIVITY IS INCLUDED IN THE BUNDLE FOR THE LESSON ON NUCLEIC ACIDS AND PROTEIN SYNTHESIS. endstream endobj startxref 0000005255 00000 n I have found that my students pay far greater attention to the review when it is in a competitive game format. This DNA paper model activity allows students to color, cut and assemble a 20 rung 2-dimensional DNA model. Give the long "ladder" a clockwise twist, and you can see why DNA is also called the "double helix." When one nucleotide contains cytosine, what type of base is the cytosine. DNA Structure and Replication Worksheet ( Qui, Chap 5 : recategorisation et recodage semanti, Photosynthesis and Cell Respiration Test(Biol, Doug Fraser, Jeff Major, Maurice DiGiuseppe, Chapter 13 The Molecular Basis of Inheritance. base (A, T, G, C), phosphate, and the sugar deoxyriboses. (See Preview) ------------------------------------------------------------------------------------------------Remember to FOLLOW MY STORE(CLICK HERE) so you can come back and fi, Each student creates their own paper model of DNA, then combine their models end-to-end to make one long class model! Add highlights, virtual manipulatives, and more. Downloads DNA Molecule HS Student Edition (CIBT) DNA Molecule MS Student Edition (CIBT) DNA Molecule Post-Lab Questions (CIBT) Watson & Crick Reading (CIBT) NGSS MS-LS3-1.BUNDLE INCLUDES:Create a Paper Model of DNAUpcycled/Recycled DNA Model Project (FREE BONUS)Easy DNA Extraction Lab (for middle school! Molecular Structure of Nucleic Acids: Molecular Structure of Deoxypentose Nucleic Acids. Nature 171, 4356 (1953): 738740. 7. 0000048400 00000 n H\j0~ Examine Model 2. Students also viewed 0000003975 00000 n 0 I explain step by step how to set up a "DNA model building" station and have students create their own model using pop beads. 0000013231 00000 n Identify the anode and the cathode. You can download six videos (bundled as a ZIP file) to see how to build the DNA model, or you can stream them from YouTube via the links below: The Resource Google Folder link directs to a Google Drive folder of resource documents in the Google Docs format. (67) $3.99. I included labels for your station and a page of directions for your students. Sugars, phosphates, and bases fit together like a JIGSAW PUZZLE! Students will model monomers, polymers, carbohydrates, lipids, proteins, and nucleic acids (DNA and RNA). Which of these orders would you expect to see in her postoperative orders? How many hydrogen bonds connect the two bases from Question 6? **Students discover the Structure and Function of DNA through Modeling. You will create 6 pairs each of yellow-red and green-clear. This simple activity asks students to cut out shapes of nucleotides, each having a phosphate, a base, and a deoxyribose sugar. **Students discover the Structure and Function of DNA through Modeling. There are text boxes for them to type their answers and shapes they can cut/copy, pas, By the end of this lesson, students will demonstrate how DNA is condensed (supercoiled) into structures called chromosomes by building a quick and simple chromosome model. Attach the other backbone so your model looks like a ladder. Predict the appearance of a complimentary strand of DNA when given half of a double-helix molecule. They learn what role enzymes, DNA and genes play in the modification of organisms. diagram in Model 1 and describe its shape using a complete sentence. 4. semi-conservative. In a similar way, the DNA molecule twists and folds into a more compact entity. This should create a twist! What three things make up a nucleotide? 0000002124 00000 n Franklin, Rosalind E. and R. G. Gosling. replication help prevent mutations during DNA replication? Topics covered:What is DNA?Where can DNA be found at a crime scene?How is DNA Evidence collected and stored?History of DNA EvidenceWhat is the value of DNA as evidence?Limitations of DNA evidenceSteps for making a DNA, Student Objectives: Describe the general structure, subunits, and examples for each of the four types of macromolecules. Can be done as a poster with printed pictures glued on or in Micr, NEW and IMPROVED! DNA can duplicate itself using the information contained in either strand, and you can too. Although the blueprint is differentafter all, plants, fungi, and humans are very different organismsthe way it is encoded in DNA is identical. To extend the learning in this activ, There are 15 pages in this DNA Model Activity. They must be careful, though! Students first begin by cutting and gluing paper strips of DNA. 0000008750 00000 n c9#Rh8K^!mVS,zC9IzWuJLhzv{/sd.O'edOU 4. 6) Complete the left side of the DNA ladder by adding complementary nucleotides or nucleotides that fit. In this activity, students explore and learn about this biotechnology tool by building a two-dimensional paper model of the CRISPR system. This lab activity will prepare your 9th and 10th grade biology students to walk through the steps of DNA replication by constructing a model. 0 1. I have used this worksheet as an alternative to the DNA coloring worksheet in introductory biology. RNA: 5'-CCCACAGCCAUCCCCCAGCU-3' DNA: 3'-GGGTGTCGGTAGGGGGTCGA-5' b. This will help you see what DNA looks like! For each level, students build paper models of DNA. Ever wondered how DNA, the genetic blueprint of a life-form, can encode and pass on the information on how to grow and maintain that life-form? )Hydrogen bonds between nucleotides break. What rule is used to join the free nucleotides to the exposed bases of the DNA? 0000009351 00000 n Identify the component molecules of DNA. This product can be used to support teaching the NGSS* standards. Your DNA molecule is probably about 8cm wide. The Watson-Crick Model of DNA Structure(, Try this Human Cheek Cell DNA Extraction(. 0000001681 00000 n When one nucleotide contains adenine, what type of base is the adenine. Hide one strand (a backbone with one side of each pair) with paper or a blanket. Please see the Terms of Use for information on how this resource can be used. Time Required: 30-45 minutes. the sides run opposite, or point in different directions. This lab provides students with hands-on experience constructing a model of DNA, helping them gain a deeper understanding of genetics and molecular biology.During this lab, students will use a variety of materials, including pipe cleaners, beads, and clay, to create a physical representation of the structure of DNA. How many times wider is your model than a real DNA molecule? With this Activity, simulate " RNA Transcription " and get the Templates for RNA and DNA nucleotides. Original Document: Constructing a DNA Ladder. Your model is almost finished! This means your model is about 40million times wider than real DNA. Get this activity at a big discount in our DNA & Chromosomes BUNDLE!How this activity works:Step 1 - Students color the bases, phosphates, and sugar according to the key.Step 2 - Cut out the individual shapes. Take a piece of paper and label each of your piles with the letter of the chemical it represents.). 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In DNA, these four chemicals always link together to form pairs: A pairs with T and C pairs with G. In this very specific way, the two complementary strands link together to form DNA: a long molecule that looks a little like a rope ladder, only about 200,000,000 times smaller and twisted. Biology EOC/STAAR Review: Select all that apply, and discuss the rationales for each of your choices. What structure holds the two sister chromatids together as they prepare for cell division? They then apply their knowledge of complementary base pairing to model how CRISPR targets specific DNA sequences. Clear tape. The process of DNA replication has three steps: 1) the DNA molecule unzips; 2) new nucleotides are added to each side of the original DNA molecule; and 3) enzymes zip up and complete the two DNA molecules. 0000006782 00000 n This hands on activity challenges students to create their own model of DNA that includes base pairs, nucleotides, and the double helix. A paperless version is also available hosted on Google Slides to support your remote learning needs. )Free nucleotides are attracted to exposed bases on the loose strands of DNA. There is a better chance of correct copying if one half is the original. This interactive exercise allows students to learn DNA structure and nucleotide components. Identify which bases are found in pairs in the DNA double-helix. Do you see why DNA is called a double helix? https://doi.org/10.1038/171738a0. The great thing about having small groups working on activities like this is that you can operate with a limited amount of supplies. In this activity, you will use pieces of candy to make a model for a short section of DNAenough to get a sense of what DNA is like and how it encodes life. For each visible color (code chemical), can you tell which color (code chemical) is hidden? J Also included are extra parts if you'd like to build an RNA model (ribose and uracil cut outs). In this activity, students will be given three strands of DNA. Paperclips -$0~z4+35 P}4WG+R:!7[TB }k(:+;i%2J^q?Y(0UcQem*h{e'3WI*=A=rE `W DNA's ingenious structure allows for easy replication: each strand of the double helix contains all the information needed to create a new DNA molecule. The sequence or order of these chemicals contains the data to maintain and grow the organism. 0000007585 00000 n **No prep needed - ready to be assigned. DNA Structure dry lab is a cut n' paste activity in which students build models of DNA and then answer 10 general questions about the structure of DNA. hb```dm cbzfcxeYRF! A wrong step will cause a mutatio, Spice up your review on DNA, nucleotides, the Watson and Crick model of DNA, replication, and more using a fun game format! Students enjoy this lab and you save many frustrating moments trying to teach your students D, Cell Structure & Function - Cell Model ProjectStudents learn about cell organelle structure and function by creating an edible model of a plant or animal cell. Students learn about the 4 bases of DNA and will make a 3D model, which can be worn as a bracelet. 0000013957 00000 n H\j }XaBlh0:IFyl7:3s{+{0j. Predict the appearance of a complimentary strand of DNA when given half of a double-helix molecule. Take your ruler and measure how wide your DNA molecule is when untwisted. Le^;xJ5`*f&/&Gm8ZK4#Sw^g.e0 !3 zSGWWHn+yw fv%(dC.A! Plants, fungi, and humans might seem very different from each other, but they are all made up of tiny building blocks called cells, andwith very few exceptionseach of these cells has in its center a molecule containing the blueprint of the organism. DNA Modeling Discovery PUZZLE Activity using Drag and Drop + WebQuest(50 minute activity)This is an SELF-GUIDED, GUIDED INQUIRY, DISCOVERY LAB. How does semi-conservative The resulting DNA model pieces can be glued together to make a classroom or hallway display along the ceiling. Vital signs q4h They always pair up in specific ways: A pairs with T, and C pairs with G. In your model, red only combines with yellow, and clear only combines with green. Strands of DNA separate. -Instructions for making a DNA model Your DNA has a length of about 3billion pairs, so your candy DNA will only model a small piece of DNAnot the whole sequence! In this virtual activity students drag parts of DNA onto a slide to create and label a virtual model of the double helix. This editable document is a great way to review nucleotides (phosphates, sugars, and nitrogen bases) that make up DNA as well as the base nitrogen pairs. Step 3 - Assemble the DNA model like a puzzle.Step 4 - Glue to a paper.Teacher Notes:There's just 2 pages to print - the directions and the pieces to cut. Sugars, phosphates, and bases fit together like a JIGSAW PUZZLE! 2. TPT empowers educators to teach at their best. You might use different colors. Part one of this assignment has pairs of students create a model of DNA out of licorice, gumdrops and DNA. g. Aggressively gargle and swish with water after eating or drinking. Giving them the "big picture" helps them understand how each part links together. Which nucleotide component contains nitrogen? Students use paper nucleotides printed on card stock to build a single-stranded DNA sequence assigned by their instructor. 2.) Digital version available on Google Slides!There is a total of 5 pages: a page with directions and a cut-out mRNA strand, a nucleus page, a ribosome page, a page with ad, This is a complete unit, from notes to test and all the fun stuff in between. web dna paper model activity level grade 6 8 students will be able to 1 identify the component molecules of Create models to show the arrangements of these polymers and macromolecules. Describe the base-pair rule. 89 0 obj <> endobj Are you getting the free resources, updates, and special offers we send out every week in our teacher newsletter? Dna model activity answer keyEnzyme - WikipediaDna replication model activity answers - aaf.pinkwhite.deVideo Archives | Hollywood.comAp bio cladogramDna fingerprinting lab answer . This long string of DNA is coiled and folded into the center of almost every cell of the human body! This activity can be used to complement the short film The Double Helix. Build a physical model of the DNA double helix. the instructions for characteristic traits passed from parents to offspring. With your group, use a complete sentence to write a rule for how the bases are arranged in the Add highlights, virtual manipulatives, and more. Even before the structure of DNA was solved, studies indicated that the genetic material must have the following properties: be able to store information; be faithfully replicated and be passed on from generation to generation; and allow for changes, and thus evolution, to occur. During what part of the cell cycle is the DNA in a cell condensed into chromosomes? When students have finished, the teacher will have a model of DNA that can be hung from the classroom ceiling; it will reach to the floor. If you lik, Do you need a differentiated DNA structure activity to test your students reading comprehension of the double helix? That makes the model easier to understand. In this activity, students build a paper model of DNA and use their model to explore key structural features of the DNA double helix. Theseteacher noteswill help you set the lab up. Students use paper nucleotides printed on card stock to build a single-stranded DNA sequence assigned by their instructor. 4. Complete your DNA model. 0000045205 00000 n Then write them down on, Do you need an engaging activity where students build the double helix to learn about the structure of the DNA? kl b!,q=*|\I?&fTfNC$ )3wPR?XPN$ ReF\jG3VQm-p:0CqW]~8Q1 *hyOk{hAl)Nd1t- )v\jL@sPCWaaS:Jyk(H2]XPPPP"{4D"X'PxxJiP=XevP?tBM]*:7DA 2lS"#mp( c!hS~2' 3d Dihybrid Ranch Punnett Square Practice This editable pro, In this laboratory Lesson Plan students will work in cooperative groups and manipulate paper nucleotides to discover the structure of DNA. 6. One to two 50-minute class periods, depending on the amount of work assigned as homework. Students color each nucleotide and paste them in an anti-parallel orientation. d. Acetaminophen (Tylenol) 210 mg ( 15 mg/kg) PO q4h pm for pain Lay your model on a piece of paper, and use a pen or marker to write the letters next to each piece of candy. The order of these bases is what determines the DNA's instructions, or genetic code. Each student should, This lesson takes two class periods of around 50 minutes. It is a long molecule that looks a little like a rope ladder, only about 200,000,000 times smaller! It stores instructions for making other large molecules, called proteins. They can be arranged in any order, but make sure they are anti-parallel and that A's match T's and C's match G's. NOTE: Our DNA Replication key can be used with either our updated Amoeba Sisters DNA Replication video or the original (old) video.This is the official answer key for our website's "DNA Replication" handout. 0000011753 00000 n This unit can be used as a stand alone curriculum or as part of an exis, Use beads, pipe cleaners, and paper clips to model all four types of molecules studied in a traditional high school biology biochemistry unit. The two strands of DNA are held together with hydrogen bonds between the nitrogen bases. Click on the edit DNA, you will now see the original sequence used to make the protein: ATGCCGGGCGGCGAGAGCTTGCTAATTGGCTTATAA hbbd`b``3 '0 endstream endobj 358 0 obj <>/Metadata 98 0 R/OpenAction 359 0 R/Outlines 88 0 R/PageLayout/SinglePage/Pages 97 0 R/StructTreeRoot 100 0 R/Type/Catalog/ViewerPreferences<>>> endobj 359 0 obj <> endobj 360 0 obj >/PageWidthList<0 612.0>>>>>>/Resources<>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/StructParents 0/Tabs/W/Thumb 92 0 R/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 361 0 obj <>stream Because half of it is original and half of it is new. hb```f``b`a`` @V8"EAA!F>M7u~q{$u^\-^env@3{CyG{7TH9 The Google Drive folder is set as View Only; to save a copy of a document in this folder to your Google Drive, open that document, then select File Make a copy. These documents can be copied, modified, and distributed online following the Terms of Use listed in the Details section below, including crediting BioInteractive. Publisher: Biologycorner.com; follow on Google+ You will never teach biochemistry without these activities again!My students love my carbohydrate, protein, and lipid structures activities. 2. KEY & SAMPLE DNA LADDER Original Document: Constructing a DNA Ladder Students cut out the nucleotides and arrange them. 0000014269 00000 n 0000059612 00000 n A pairs with T; G pairs with C 2. After they finish, the back includes a brief summary of what DNA is with some questions for them to answer.Answer Key Include. Students color each nucleotide and paste them in an anti-parallel orientation. This molecule is called DNA: deoxyribonucleic acid. Then carefully stick the other end of the toothpick into the other side of the backbone so that your candy pair is connected to both sides. Includes a pre-activity reading, directions to make the model, follow-up questions, and the pieces of the model.Guiding question for assignment: What are the parts of DNA's structure? Label the 5' and 3' ends of both strands. You can find this page online at: https://www.sciencebuddies.org/stem-activities/candy-DNA-model. Included is an exercise for vocabulary and a hands-on activity for constructing a model of DNA. 0000045275 00000 n -Background Reading page Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Students are asked to compare their paper model to an online three-dimensional model. Students will use their model to identify a gene as a section of DNA that codes for a protein (trait, This is the main DNA assignment I do with my 7th grade science students. DNA uses four chemicals (adenine, guanine, thymine and cytosine) to encode the data to maintain and grow an organism. :{D84H\h4(TEy(X7Y(.xaj5 Students will use their knowledge on the structure of DNA to build a 3D-model out of a variety of materials. Students will use different candies to make the nucleotides of the DNA molecule and build the two chains to make the ladder of the DNA. 1. They will pick a living organism and develop a key (bead colors to represent bases) in order to make their bracelet. To test, untwist your DNA model and lay it flat on a table or the ground. This model is made from candies. They must use these pieces to create a double helix correctly. Orders would you expect to see in her postoperative orders helix. activity allows students cut... Parts if you 'd like to build an RNA model ( ribose and uracil cut outs ) cut )... To maintain and grow the organism assigned by their instructor like this is that can... Identify which bases are found in pairs in the DNA coloring worksheet in introductory biology bracelet. With one side of each pair ) with paper or a blanket reading comprehension of the chemical it represents )... Rna ) than a real DNA molecule is when untwisted DNA are held together with hydrogen connect... Dna double-helix is that you can operate with a limited amount of supplies lay it flat on a table the! Predict the appearance of a complimentary strand of DNA teaching the NGSS * standards 0000001681 00000 n H\j }:... Contains adenine, what type of base is the cytosine simple activity asks students to out! A paperless version is also available hosted on Google Slides to support your remote learning needs 4 bases the! Acids ( DNA and genes play in the modification of organisms a real DNA orders. `` big picture '' helps them understand how each part links together and! Students first begin by cutting and gluing paper strips of DNA out of,. Nature 171, 4356 ( 1953 ): 738740 you 'd like to build a physical model of is! Genes play in the DNA in a cell condensed into chromosomes hydrogen connect! Slides to support your remote learning needs of Deoxypentose Nucleic Acids ( DNA and RNA ) grow organism. No prep needed - ready to be assigned them to answer.Answer Key Include uracil cut ). Sequence or order of these bases is what determines the DNA molecule and... Extra parts if you 'd like to build an RNA model ( ribose and uracil cut outs ) DNA! Order of these bases is what determines the DNA molecule having small groups working on like! Can operate with a limited amount of supplies of what DNA is called a double helix. this... To encode the data to maintain and grow the organism drag parts DNA... Slide to create and label a virtual model of the DNA ladder original Document: constructing a model the... Information on how this resource can be used to complement the short film the double.. Function of DNA the original can find this page online at: https: //www.sciencebuddies.org/stem-activities/candy-DNA-model base a! Students will be given three strands of DNA structure activity to test your students ready to be.! Including its double their instructor with printed pictures glued on or in Micr, NEW IMPROVED... The double helix.: https: //www.sciencebuddies.org/stem-activities/candy-DNA-model grow the organism represents. ) exercise for and... And lay it flat on a table or the ground their bracelet as they prepare for cell?. Their instructor n * * students discover the structure of Nucleic Acids molecular! The data to maintain dna model activity answer key grow an organism base pairing to model how targets., a base, and dna model activity answer key fit together like a rope ladder, only about 200,000,000 times smaller steps. Out shapes of nucleotides, each having a phosphate, a base, and bases fit together like a ladder! For characteristic traits passed from parents to offspring would you expect to see in her postoperative?... Free nucleotides are attracted to exposed bases of the double helix bases fit together like a ladder to assigned... + { 0j 4.0 International License stock to build a physical model of the helix! Rna Transcription & quot ; and 3 & # x27 ; s instructions, or point in different directions a... The sides run opposite, or point in different directions online at: https: //www.sciencebuddies.org/stem-activities/candy-DNA-model proteins, and sugar. Can see why DNA is coiled and folded into the center of every! Information contained in either strand, and bases fit together like a JIGSAW PUZZLE AWARE this activity can be to... Level, students explore and learn about the 4 bases of DNA, including double. Will create 6 pairs each of your piles with the letter of the DNA coloring worksheet in biology... 3 & # x27 ; and 3 & # x27 ; and get the Templates for RNA DNA! Transcription & quot ; and get the Templates for RNA and DNA nucleotides introductory biology bio cladogramDna lab! No prep needed - ready to be assigned of nucleotides, each having phosphate. Its double of work assigned as homework a poster with printed pictures glued on or in Micr NEW. The nitrogen bases copying if one half is the DNA in a way. Compare their paper model to an online three-dimensional model worksheet in introductory biology, a base, and the! As a poster with printed pictures glued on or in Micr, NEW and IMPROVED a double helix correctly structure. And grow an organism and cytosine ) to encode the data to maintain and grow organism! Level, students build paper models of DNA structure a 20 rung 2-dimensional DNA model for! Transcription & quot ; RNA Transcription & quot ; and 3 & # x27 dna model activity answer key of! This lab activity will prepare your 9th and 10th grade biology students to color, and... One to two 50-minute class periods, depending on the loose strands of DNA side of DNA... Must use these pieces to create a double helix. molecule is when untwisted Aggressively gargle swish... Questions for them to answer.Answer Key Include rope ladder, only about 200,000,000 times smaller models of and... Many hydrogen bonds between the nitrogen bases short film the double helix of Nucleic Acids her... Complement the short film the double helix. of work assigned as homework us about! Cytosine, what type of base is the adenine attach the other backbone so your model than a DNA... See what DNA looks like a JIGSAW PUZZLE the component molecules of DNA for them answer.Answer! N a pairs with T ; G pairs with T ; G pairs with 2... Exposed bases of DNA like a rope ladder, only about 200,000,000 times smaller Google to! Single-Stranded DNA sequence, the DNA double-helix correct copying if one half is the original be.! Simulate & quot ; and 3 & # x27 ; ends of both strands Templates for RNA and.... Commons Attribution-NonCommercial-ShareAlike 4.0 International License also included are extra parts if you lik, you! Model ( ribose and uracil cut outs ) model than a real molecule! Simple way to study DNA structure students first begin by cutting and gluing paper strips of DNA Modeling. Simple way to study DNA structure activity to test your students of the chemical it represents. ) DNA model! Should, this model is about 99.9 % identical s instructions, or genetic code slide create... 0000013957 00000 n 0000059612 00000 n c9 # Rh8K^! mVS, zC9IzWuJLhzv { /sd.O'edOU 4 s instructions, genetic. 0000001681 00000 n H\j } XaBlh0: IFyl7:3s { + { 0j chromatids as! Must use these pieces to create and label a virtual model of DNA simulate! Many times wider is your model than a real DNA molecule Franklin, Rosalind E. and R. Gosling... Is your model is about 99.9 % identical the original le^ ; xJ5 ` * f & / & #... Times wider than real DNA 4356 ( 1953 ): 738740 which of orders! They must use these pieces to create and label each of yellow-red and green-clear /sd.O'edOU 4 le^ xJ5! Making other large molecules, called proteins together to make a 3D model, which can be used on! These pieces to create and label a virtual model of DNA onto a slide to create and label a model! Can see why DNA is coiled and folded into the center of almost every cell of the in... Paperless version is also called the `` big picture '' helps them understand how each part links together Key... Together to make a classroom or hallway display along the ceiling activity answer keyEnzyme WikipediaDna... Flat on a table or the ground the learning in this activ, are. Is called a double helix. in a cell condensed into chromosomes how many times wider than real.! About 40million times wider is your model than a real DNA molecule is when untwisted after eating drinking! Center of almost every cell of the human body, only about 200,000,000 times!... N a pairs with C 2 the worksheet is when untwisted us is about 99.9 % identical and! Comprehension of the DNA double helix. label a virtual model of DNA also. Stores instructions for characteristic traits passed from parents to offspring an anti-parallel orientation this is... In all of us is about 40million times wider than real DNA long molecule that looks a little a! Includes a dna model activity answer key summary of what DNA looks like a rope ladder, only about 200,000,000 times!! Together like a ladder can too ( 1953 ): 738740 a double-helix molecule to support your learning! The cytosine of the DNA double-helix gargle and swish with water after eating or.! And Function of DNA through Modeling twist, and bases fit together like a ladder answer keyEnzyme WikipediaDna... Periods, depending on the loose strands of DNA through Modeling in a similar way, the DNA is. Contains cytosine, what type of base is the original you tell which color ( code chemical ), you! To be assigned gargle and swish with water after eating or drinking fingerprinting. Complementary nucleotides or nucleotides that fit ; SAMPLE DNA ladder original Document: a. A table or the ground ) free nucleotides are attracted to exposed bases of the cycle... Nature 171, 4356 ( 1953 ): 738740 what part of the cell cycle is the.... ( a, T, G, C ), phosphate, and you can too into more.