DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April...

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DNA Structure and Replication 2016.notebook 1 April 12, 2016

Transcript of DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April...

Page 1: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 2: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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• The instructions for life are in a code.

DNA

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• The instructions for life are in a code.

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Organization and Packaging of DNA in the CellClick on the nucleus to zoom in onchromosomes. 

Page 5: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Nucleus

genes

chromosome

nitrogen bases

Page 6: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 7: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 8: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 9: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 10: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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sides

(steps)sides

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Page 12: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 13: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 14: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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ccc

c c

DEOXYRIBOSE

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 PHOSPHATE GROUP

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NITROGEN BASE (one of four)

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Page 18: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 19: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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The DNA Ladder• Phosphate and deoxyribose sugar 

form the sides of the ladder.• Nitrogen bases form the steps 

(rungs) of the ladder.

Page 20: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 21: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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• There are four different nucleotides because there are four different kinds of nitrogen bases.

T

C

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Page 23: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 24: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 25: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 26: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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How DNA Produces Traits

• DNA contains short segments called genes.

https://www.youtube.com/watch?v=FUA6_Ucw3i4

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• The sequence (arrangement) of the nitrogen bases in the gene control the production of a protein.

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Proteins control the trait,or characteristics of an organism.

Page 29: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Nucleus

genes

chromosome

nitrogen bases

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: making copies of DNA

Page 31: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Steps of DNA replication

1. Enzyme "unzips" the DNA molecule.2. The strands separate and act as a "template" (model) for forming new strands.

Page 32: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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3. Free nucleotides are attached to the two strands.

4. Two NEW strands of DNA are created.

5. Each is one half original, one half new.

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Page 34: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 35: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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http://www.youtube.com/watch?v=FUA6_Ucw3i4

Page 36: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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Page 37: DNA Structure and Replication 2016.notebook · DNA Structure and Replication 2016.notebook 31 April 12, 2016 Steps of DNA replication 1. Enzyme "unzips" the DNA molecule. 2. The strands

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