Prepare a model of the DNA and
give a presentation based on it.
Answers
Answer:
- Constructing DNA models is a great way to learn about DNA structure, function, and replication. DNA models are representations of the structure of DNA. These representations can be physical models created from almost any type of material or they can be computer generated models.
DNA was discovered by James Watson and Francis Crick in the 1950's.
- DNA is a type of macromolecule known as a nucleic acid. It is shaped like a twisted double helix and is composed of long strands of alternating sugars and phosphate groups, as well as nitrogenous bases (adenine, thymine, guanine and cytosine). DNA controls cellular activity by coding for the production of enzymes and proteins. The information in DNA is not directly converted into proteins, but must first be copied into RNA in a process called transcription.
DNA Model Ideas
- DNA models can be constructed from almost anything including candy, paper, and even jewelry. An important thing to remember when constructing your model is to identify the components you will use to represent the nucleotide bases, sugar molecule, and phosphate molecule. When connecting the nucleotide base pairs be sure to connect the ones that pair naturally in DNA. For example, adenine pairs with thymine and cytosine pairs with guanine. Here are some excellent activities for constructing DNA models:
DNA Models: Science Projects
- For those interested in using DNA models for science fair projects, remember that simply constructing a model is not an experiment. Models may be used, however, to enhance your project
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Answer:
(^O^)❤MARK AS BRAINLIEST❤
Explanation:
For model refer to you tube
Making DNA models can be informative, fun, and in this case tasty. Here you will learn how to construct a DNA model using candy. But first, what is DNA? DNA, like RNA, is a type of macromolecule known as a nucleic acid that contains the genetic information for the reproduction of life. DNA is coiled into chromosomes and tightly packed in the nucleus of our cells. Its shape is that of a double helix and its appearance is somewhat of a twisted ladder or spiral staircase. DNA is composed of nitrogenous bases, a five-carbon sugar (deoxyribose), and a phosphate molecule.
What You Need:
You can make this candy DNA model with just a few simple ingredients.
Red and black licorice sticks
Colored marshmallows or gummy bears
Toothpicks
Needle
String
Scissors
Here's How:
Gather together red and black licorice sticks, colored marshmallows or gummy bears, toothpicks, needle, string, and scissors.
Assign names to the colored marshmallows or gummie bears to represent nucleotide bases. There should be four different colors each representing either adenine, cytosine, guanine or thymine.
Assign names to the colored licorice pieces with one color representing the pentose sugar molecule and the other representing the phosphate molecule.
Use the scissors to cut the licorice into 1 inch pieces.
Using the needle, string half of the licorice pieces together lengthwise alternating between the black and red pieces.
Repeat the procedure for the remaining licorice pieces to create a total of two strands of equal length.
Connect two different colored marshmallows or gummy bears together using the toothpicks.
Connect the toothpicks with the candy to either the red licorice segments only or the black licorice segments only, so that the candy pieces are between the two strands.
Holding the ends of the licorice sticks, twist the structure slightly.
Tips:
When connecting the base pairs be sure to connect the ones that pair naturally in DNA. For example, adenine pairs with thymine and cytosine pairs with guanine.
When connecting the candy base pairs to the licorice, the base pairs should be connected to the licorice pieces that represent the pentose sugar molecules.
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