4 Where is DNA found in the Cell?? Answer:The Nucleus
5 DNADEOXYRIBONUCLEIC ACIDStores and passes on genetic information from one generation to another .
6 Fun DNA Facts!DNA is too small to see, but under a microscope it looks like a twisted up ladder!DNA stands for: D: Deoxyribo N: Nucleic A: AcidEvery living thing has DNA. That means that you have something in common with a zebra, a tree, a mushroom and a beetle!!!!
7 DNA Who Done It?James Watson, Francis Crick and Rosalind Franklin are credited with discovering the double helix structure of DNA.Watson and Crick used Franklin’s x-ray data to write “The Double Helix”
9 X-Ray picture of DNAX-ray crystallography is a method of determining the arrangement of atoms within a crystal, in which a beam of X-rays strikes a crystal and diffracts into many specific directions.
10 DNA STRUCTUREThe DNA structure is shaped liked a spiral staircase, or twisted ladder.
11 DNA STRUCTUREThe outer parts of the ladder are made of sugars (deoxyribose) bonded to each other by phosphates.
12 DNA STRUCTUREThe steps of the ladder are made of pairs of nitrogen bases.
13 DNA is made up of steps and rails of a ladder. CGThis is a railATGCCGThis is a stepATCGGreen can only go with RedGCATATGCPurple can only go with YellowNitrogen Bases (Steps)GC
14 DNA STRUCTURE ADENINE = A GUANINE = G CYTOSINE = C THYMINE = T THE NITROGEN BASES ARE REPRESENTED BY THEIR CAPITAL LETTER.
15 DNA STRUCTURE There is only one way the nitrogen bases can form Adenine pairs with ThymineGuanine pairs with Cytosine
16 DNA STRUCTUREQUESTION ?Can C join with A?And G join with T?
17 DNA STRUCTUREACTCATGGTCATGTGAGTACCAGTACThis is an example of a genetic code that may be found in your body.
18 DNA STRUCTUREThe combinations of the nitrogen bases is the code that produces the genes for a particular trait.
19 DNA STRUCTUREBecause there can be so many different combinations of the bases the code can be limitless
20 DNA REPLICATIONReplication: is the process where DNA molecules form exact duplicates.
21 ****DNA replication needs to happen before a cell divides. DNA REPLICATION STEPSThe ladder splits2. Free floating nitrogen bases begin to pair with each strand3. Two new DNA chains are formed****DNA replication needs to happen before a cell divides.