1. DNA Structure & Function

2. DNA Structure and Function

3. Structure Written Response #6: Draw and label a nucleotide.
DNA is a nucleic acid made of repeating subunits called nucleotides
Each nucleotide contains 3 parts:
5-carbon sugar
A simple sugar (Deoxyribose)
Phosphate group
Nitrogen base

4. Nitrogenous Bases Double Ringed Bases: Single Ringed Bases:
Adenine (A)
Guanine (G)
Single Ringed Bases:
Thymine (T)
Cytosine (C)

5. Structure Nucleotides are linked together to form DNA molecules
Twist in double helix joined by weak hydrogen bonds
Sugar (Deoxyribose) and phosphate compose the backbone of the ladder
Nitrogen base PAIRS compose the steps of the ladder
Adenine pairs with Thymine
Guanine pairs with Cytosine

6. Structure
DNA goes through 3 very important processes to code for traits in all cells
DNA replication
Transcription
Translation

7. Written Response #7 How is DNA connected to your traits?
What large structure is composed of DNA?
What two parts of the nucleotide make up the sides (backbones) of a DNA molecule?
What makes up one rung “step” of the DNA “ladder”?
What type of bond holds the rungs (bases) together?

8. Functions of DNA Foldable
Work with your table partner to create a 6- fold foldable like the image to the right.
Cut the foldable in half to share with your table partner.
Label each fold with the following headers:
Functions of DNA Foldable
Nucleotide
DNA
Genes
Chromosomes
Karyotype
For each of the terms above, underneath the flap, complete the following:
Draw a picture to represent the term
Give a description of the item
Its purpose.