A molecule that is present in all living cells and contains the information that determines the traits that a living thing inherits and needs to survive.
DNA job one
Instruction material that builds and maintains cells.
DNA job two
Able to copy itself each time a cell divides.
A _____ ____ is a twisted ladder or a spiral staircase.
Sides of double helix
sugar and phosphate
Adenine, Thymine, Cytosine, and Guanine
She made the first image of an actual DNA molecule using x-ray diffraction. Through this break through we learned that DNA has a spiral shape.
Watson and Crick
1953's they built the first model of DNA. They won the Nobel Prize.
1950's he found equal amounts between certain base pairs.
Adenine = Thymine
Cytosine = Guanine
Making copies of DNA occurs.
How much DNA is in every cell of your body?
Order of the bases on one side is a ____ that carries information.
Is a piece of that code that gives the cell information on the trait it controls.
left to right
You read the code ____ to _____.
What is the code split up by?
DNA damage from ____________ ______ such as ultraviolet light (sunshine), nuclear radiation or certain chemicals is a cause of a Mutation.
Mistakes that occur when a cell copies its DNA in preparation for cell division.
bases in DNA
Changes in the number, type, or order of _____ __ ___ is a cause of a mutation.
When a base is left out.
When a base is added.
Occurs when the wrong base is used.
Improved trait, no change, harmful trait such as sickle cell disease
A new organism with an exact copy of DNA from another organism.