Chapter 10
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CHAPTER 10. DNA STRUCTURE AND FUNCTION. DNA STRUCTURE. 1. Cont. DNA:. 1. Cont. DNA:. 1. Cont. DNA:. DNA FUNCTION. DNA REPLICATION. The Sequence. DNA POLYMERASE. b. Process of transcription:. TRANSCRIPTION. THE PROCESS. ANTI-SENSE STRAND. SENSE STRAND. REVERSE TRANSCRIPTASE

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CHAPTER 10

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Chapter 10

CHAPTER 10

DNA STRUCTURE AND FUNCTION


Chapter 10 3435653

DNA STRUCTURE


Chapter 10 3435653

  • 1. Cont. DNA:


Chapter 10 3435653

  • 1. Cont. DNA:


Chapter 10 3435653

  • 1. Cont. DNA:


Chapter 10 3435653

DNA FUNCTION


Dna replication

DNA REPLICATION

The Sequence


Chapter 10 3435653

DNA POLYMERASE


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b. Process of transcription:


Transcription

TRANSCRIPTION

THE PROCESS


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ANTI-SENSE

STRAND

SENSE

STRAND


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REVERSE TRANSCRIPTASE

( HIV)


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Cont. Translation


Translation

TRANSLATION

THE PROCESS


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Met

A

C

U


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Met

Leu

A

A

C

U

U

A


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Leu

Met

A

U

A

U

A

C


Chapter 10 3435653

Leu

Met

A

A

C

U

U

A


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Leu

Gly

Met

C

C

A

U

A

A

G

G

U


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Gly

Met

Leu

C

C

A

U

A

A

A

G

A


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Met

Arg

Leu

Gly

C

U

U

C

C

A


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STOP

Met

Leu

Arg

Gly

U

U

C


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ATTCGGG → UV light → AT=TCGGG

Cannot be rea


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ATTCGGG → UV light → AT=TCGGG →

Cannot be read


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1. Cont. Physical agents that produce mutations:


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2. Chemical Agents that produce mutations:

Binds A

Binds G

AAAGGGCCCTG

T*T*T*CCCGGGAC

GGGGGGCCCTG


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DNA

RNA

PROTEIN


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MUTATIONS MAY INVOLVE LARGER SEGMENTS OF DNA


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Insertion sequence


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Cell Size and Scale Resource at the University of Utah.


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ii. Bacteria and Genetic Engineering

What are PLASMIDS?

  • Extra chromosomal circular pieces of DNA in bacteria that normally carry genes such as:

  • R genes : Resistance to antibiotic genes,

  • TOX genes: Toxic genes (poisons)

  • F Factors : Fertility factors (Sex factors)

  • Plasmids are the vehicles of Genetic Engineering


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