DNA What is it? And what does it do?

What two things did you not know, had forgotten or felt were important?

Check for Understanding 1) How are traits passed?  Traits are passed through genes 2) When is DNA copied?  During Interphase of the Cell Cycle 3) What is the relationship between proteins and amino acids?  20 amino acids come together in various combinations to create proteins 4) Are all proteins the same size?  No, they can range from 20 amino acids to thousands of amino acids

DNA Structure and Function Videos DNA Structure  G_fKUTR8 G_fKUTR8 What is DNA and how does it work?  gNGe4aY gNGe4aY

DNA Replication In Action bt7_E4

Check for Understanding 1) What three components make up a nucleotide subunit?  Phosphate, Sugar, Nitrogen Base 2) What are the rules about how the bases pair?  Adenine + Thymine Cytosine + Guanine 3) What is meant by a “triplet” code?  Three bases together are the code for one amino acid 4) What are the steps for DNA replication?  Strands separate  Nucleotides pair up  Two identical strands are formed