Cours Uni 2-Expression de l'Information Genetique

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Transcript of Cours Uni 2-Expression de l'Information Genetique

  • 2

    Elajjouri.svt@gmail.com -1-

    8

    ADN

    ADN

    I

    1 1 1

    Caractre hrditaire

    2 1

    Escherichia Coli

    E Coli

    Mutation 1

    23

    3E.ColiStrep R

    Strep S

    Strep S Strep R1

    La mutation

    3 1

    ADN2

    2

  • 2

    Elajjouri.svt@gmail.com -2-

    2 1 2

    ADN

    2 21

    3

    HbAHbS6GluVal

    HbA HbST AGluVal

    3.22

    Drpanocytose

    O2

    HbS

    HbA

  • 2

    Elajjouri.svt@gmail.com -3-

    4

    GA8

    GA20GA1GA8

    LeLedC126Led

    GA8

    II ADN

    1

    ARNm

    Transcription

    5

    5ARN

    15ARN

    ARN

    ADNARN ARNm

  • 2

    Elajjouri.svt@gmail.com -4-

    2ARNm

    ARNm

    6

    ARNm(U,A,C,G)

    ARNmADN

    ARNmADN

    ARNm

    ARNm4(U,A,C,G)UARN TADN

    3ARNm

    1

    ADN 2

    7

    ARNmARNADN

    ARNm

    ADNARNm

    A U

    T A

    G C

    C G

    ARNm

    III ARNm

    1ARNm

    ARNm

    8

  • 2

    Elajjouri.svt@gmail.com -5-

    ARNmARNm

    ARNm

    2

    Niremberg

    9

    UUALeu

    UUUPhe

    Codon

    Niremberg646120

    10

    Niremberg1968

    10

    3

    ARNm

    A P ARNm

    ARNm

    ARN(ARNt)ARNtA

    ARNmARNtA

    PA

    1 2

    ARNt

    11

  • 2

    Elajjouri.svt@gmail.com -6-

    4

    ARNm

    12

    ARNm 5Met P

    5 3

    P

    ARNm