Warm Up 12/10-11/14 Write down 1 thing that you know about DNA.

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Warm Up 12/10-11/14 Write down 1 thing that you know about DNA. Compare/contrast photosynthesis and cellular respiration using a Double Bubble Map(3 in each column)

DNA Structure and Function MRs. Heins, Mr. hedrick Biology 1

Contains genetic information Found in nucleus Chromosome Condensed chromatin Sausage shape Contains genetic information Found in nucleus

Chromosome

Chromosomes contain genes A sequence of DNA that codes for a protein Responsible for traits

Chromatin “Beads on a string” DNA wrapped around a protein called a histone.

DNA (Deoxyribonucleic Acid) Nucleic acid (macromolecule) The molecule that makes up a chromosome Double helix, 2 strands wound around each other

Units within DNA molecule Composed of: Nucleotide Units within DNA molecule Composed of: 5-Carbon sugar (deoxyribose) A phosphate A nitrogen containing base

Nucleotide

Nitrogenous Bases Adenine Guanine Cytosine Thymine Two ring structure Purines Pyrimidines Adenine Guanine Two ring structure Cytosine Thymine One ring structure

Base Pairing Adenine ---- Thymine Guanine ---- Cytosine Thymine ---- Adenine Cytosine ---- Guanine

Complete this DNA chain Adenine ---- Guanine ---- Thymine ---- Cytosine ---- Thymine Cytosine Adenine Guanine

Warm Up 12/4-5 What are the 3 components of a nucleotide? Which component changes based on the nucleotide? What is a chromosome? Where is it located? What is it constructed of?