The fingerprint inside your body

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Presentation transcript:

The fingerprint inside your body DNA The fingerprint inside your body

DNA Basics DNA stands for: Every living thing has DNA D- Deoxyribose N- Nucleic A- Acid Every living thing has DNA A strand of DNA is too small to see DNA is often called: Blueprint of the cell Long-term information storage Fingerprint inside your body DNA- the genetic information needed in the development and function of all living organisms.

DNA Structure DNA looks like a twisted ladder when viewed under a microscope We call this twisted ladder a double helix

DNA Structure A strand of DNA has rails and steps like a ladder Rail Rails- Sugar Phosphate Backbone Steps- Nitrogenous Bases Rail Step

A T C G Nitrogen Bases Base Pairing Rule Green bases go with Red bases Purple bases go with Yellow bases C G Our DNA isn’t really color coded, but each of these bases is structurally different. We give each one a letter.

As you can see, each nitrogen base is structurally different! Nitrogen Bases Four Base Types A- Adenine T- Thymine C- Cytosine G- Guanine As you can see, each nitrogen base is structurally different!

Sugar Phosphate Backbone

Sugar Phosphate Backbone Sugar- Deoxyribose Phosphate- P03 (holds the sugars together)

Summary Function: The genetic material of the body Structure: Double helix Length: