DNA Replication. Genes as Information Transfer A gene is the sequence of nucleotides within a...

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DNA Replication DNA Replication

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DNA Replication is Semiconservative Each strand of the parent DNA is used as a template to make the new daughter strand Each strand of the parent DNA is used as a template to make the new daughter strand DNA replication makes 2 new complete double helices each with 1 old and 1 new strand DNA replication makes 2 new complete double helices each with 1 old and 1 new strand

Transcript of DNA Replication. Genes as Information Transfer A gene is the sequence of nucleotides within a...

Page 1: DNA Replication. Genes as Information Transfer A gene is the sequence of nucleotides within a portion of DNA that codes for a peptide or a functional.

DNA ReplicationDNA Replication

Page 2: DNA Replication. Genes as Information Transfer A gene is the sequence of nucleotides within a portion of DNA that codes for a peptide or a functional.

Genes as Information TransferGenes as Information Transfer

A A genegene is the sequence of nucleotides is the sequence of nucleotides within a portion of DNA that codes for a within a portion of DNA that codes for a peptide or a functional RNApeptide or a functional RNA

Sum of all genes = Sum of all genes = genomegenome

Page 3: DNA Replication. Genes as Information Transfer A gene is the sequence of nucleotides within a portion of DNA that codes for a peptide or a functional.

DNA Replication is DNA Replication is SemiconservativeSemiconservative

Each strand of the parent DNA is used as a Each strand of the parent DNA is used as a templatetemplate to make the new daughter strand to make the new daughter strand

DNA replication makes 2 new complete double DNA replication makes 2 new complete double helices each with 1 old and 1 new strandhelices each with 1 old and 1 new strand

Page 4: DNA Replication. Genes as Information Transfer A gene is the sequence of nucleotides within a portion of DNA that codes for a peptide or a functional.

Steps in DNA Replication

1. DNA helicase breaks the hydrogen bonds holding bases together.

2. DNA polymerase adds new complementary nucleotides to each original strand from 5’ to 3’.

3. Each new DNA molecule is identical to the parent DNA molecule and is composed of an original strand and a new strand.


DNA Structure and Replication. Outline DNA Structure Nitrogenous Bases Nucleotides DNA Replication Semi Conservative Enzymes.

DNA Structure and Replication. Outline DNA Structure Nitrogenous Bases Nucleotides DNA Replication Semi Conservative Enzymes.

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