That is because DNA contains the instructions for making proteins And proteins determine the traits of an organism you for example 2 The Structure of DNA Where is the DNA in these pictures ID: 1033160
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1. 1 DNADNA is often called the blueprint of life.That is because DNA contains the instructions for making proteins.And proteins determine the traits of an organism (you, for example).
2. 2 The Structure of DNA Where is the DNA in these pictures?
3. 3 Where is the DNA in these pictures?This is a model of a DNA molecule.DNA is in the nucleus of each cell of this green plant and this green alligator.DNA is in the nucleus of each cell in the flamingo, but DNA is not in the water.
4. 4 Chromosomes and DNAChromosomes are made of a chemical called DNA.A gene is a short section of the DNA (a short section of a chromosome).So when we are talking about chromosomes, that also includes genes and DNA.DNA makes up genes makes up a chromosome
5. 5 Chromosomes and DNAWhere are the chromosomes in this picture?Protected inside the nucleus. Let’s look closely.
6. 6 The Shape of the MoleculeDNA is a very long polymer. (poly +mer)The basic shape is like a ladder or zipper that has been twisted.That is why it is called a double helix.There are two sides twisted around. Think of helicopter.
7. 7 The Double Helix MoleculeSo the DNA double helix has two strands twisted together. Let’s look closely at one.
8. 8 of 20One Strand of DNALike one side of a zipperThe side of the molecule is alternating phosphates and deoxyribose sugarThe teeth are nitrogenous bases. (4 different bases.)phosphatedeoxyribose (sugar)bases
9. 9 Four nitrogenous bases Cytosine C Adenine A Thymine T Guanine GDNA has four different bases:
10. 10 of 20One Strand of DNAphosphate-sugar-base pattern repeats; called a nucleotideSo one strand of DNA is a polymer of nucleotides.One strand of DNA has many millions of nucleotides.nucleotide
11. 11 0Two-Stranded DNARemember, DNA has two strands that fit together something like a zipper.And like a zipper, the two strands can unzip when they need to.Why would they need to?
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13. For reproduction!DNADNA http://www.lpscience.fatcow.com/jwanamaker/animations/DNA%20Lecture.html13
14. 14 DNA by the NumbersEach cell has about 2 meters of DNA.The average human has 75 trillion cells.The average human has enough DNA to go from Earth to the Sun more than 400 times.DNA has a diameter of only 0.000000002 meters.The earth is 150 billion meters or 93 million miles from the sun.
15. Any questions?15
16. End of notes.Plans16
17. Plans17
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21. More plans—DNA Charm NeclacesWhat you need:D DetergentN eNzymeA Alcohol (cold rubbing alcohol)21
22. Origami DNA modelsColor-code the basesCut off the white borderFold according to the instructions22