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DNA Prof.ª Marina M. Dapieve
 
DUPLICAÇÃO DO DNA <ul><li>A célula antes de se dividir, deve duplicar seu material genético para transmitir adequadamente ...
<ul><li>A duplicação do DNA é chamada  semi-conservativa , ou seja, a partir de uma molécula de DNA formam-se duas outras ...
<ul><li>Na duplicação,uma enzima chamada  DNA-polimerase  sintetiza a cadeia nova,usando a cadeia-mãe como molde . </li></...
A  C  T  C  G  G  G  T  A  A  C  T  C  G  A  A  G A  T  C  C  A  T  G  A T  G  A  G  C  C  C  A  T  T  G  A  G  C  T  C  T...
T  G  A  G  C  C  C  A  T  T  G  A  G  C  T  T  C  T  A  G  G  T  A  C  T A  C  T  C  G  G  G  T  A  A  C  T  C  G  A  A  ...
RNA
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  A  G  A  U  C  C  A  U  G  A Ribose Fosfato Base Nitrogenada Adenina (A) Guan...
Tipos de RNA
<ul><li>RNA mensageiro  = envia a mensagem do DNA (gene) para o citoplasma onde será traduzido </li></ul><ul><li>RNA trans...
TRANSCRIÇÃO
Segmento de DNA Gene
= RNA polimerase A  G  U  C  G  G  G  U  A  C  T
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  A  G  A  U  C  C  A  U  G  A RNA mensageiro códon
Tradução
Obs!!! <ul><li>Por motivo de didática, nos próximos slides vocês verão o ribossomo “deslizar”  sobre o RNAm. Mas lembre-se...
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  P A
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  A Met
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  P Met Ala
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  Met Ala
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  Met Ala
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  Met Ala His
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  Met Ala His
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  Met Ala His
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  Met Ala His Try
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  Met Ala His Try
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  Met Ala His Try
A  C  U  C  G  G  G  U  A  A  C  U  C  G  A  Met Ala His Try STOP
Met Ala His Try STOP
Met Ala His Try STOP PROTEÍNA
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Dna, rna, duplicação e síntese protéica

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Dna, rna, duplicação e síntese protéica

  1. 1. DNA Prof.ª Marina M. Dapieve
  2. 3. DUPLICAÇÃO DO DNA <ul><li>A célula antes de se dividir, deve duplicar seu material genético para transmitir adequadamente para as células-filhas. </li></ul>
  3. 4. <ul><li>A duplicação do DNA é chamada semi-conservativa , ou seja, a partir de uma molécula de DNA formam-se duas outras iguais a ela, e nesse processo cada novo DNA mantém uma das cadeias da molécula-mãe </li></ul>
  4. 5. <ul><li>Na duplicação,uma enzima chamada DNA-polimerase sintetiza a cadeia nova,usando a cadeia-mãe como molde . </li></ul>A C T C G G G T A A C T C G A A G A T C C A T G A T G A G C C C A T T G A G C T T C T A G G T A C T Enzima HELICASE T C A G A C A T T G A C
  5. 6. A C T C G G G T A A C T C G A A G A T C C A T G A T G A G C C C A T T G A G C T C T A G G T A C T T G A G C C C A C T C G A = DNA polimerase
  6. 7. T G A G C C C A T T G A G C T T C T A G G T A C T A C T C G G G T A A C T C G A A G A T C C A T G A
  7. 8. RNA
  8. 9. A C U C G G G U A A C U C G A A G A U C C A U G A Ribose Fosfato Base Nitrogenada Adenina (A) Guanina (G) Citosina (C) Uracila (U) NUCLEOTÍDEO
  9. 10. Tipos de RNA
  10. 11. <ul><li>RNA mensageiro = envia a mensagem do DNA (gene) para o citoplasma onde será traduzido </li></ul><ul><li>RNA transportador = transporta os aminoácidos até o RNA mensageiro para formação de proteínas. </li></ul><ul><li>RNA ribossômico = entra na constituição dos ribossomos responsáveis pela tradução. </li></ul>
  11. 12. TRANSCRIÇÃO
  12. 13. Segmento de DNA Gene
  13. 14. = RNA polimerase A G U C G G G U A C T
  14. 15. A C U C G G G U A A C U C G A A G A U C C A U G A RNA mensageiro códon
  15. 16. Tradução
  16. 17. Obs!!! <ul><li>Por motivo de didática, nos próximos slides vocês verão o ribossomo “deslizar” sobre o RNAm. Mas lembre-se de que o correto é que a fita de RNAm “corre” pelo ribossomo. </li></ul>
  17. 18. A C U C G G G U A A C U C G A P A
  18. 19. A C U C G G G U A A C U C G A A Met
  19. 20. A C U C G G G U A A C U C G A P Met Ala
  20. 21. A C U C G G G U A A C U C G A Met Ala
  21. 22. A C U C G G G U A A C U C G A Met Ala
  22. 23. A C U C G G G U A A C U C G A Met Ala His
  23. 24. A C U C G G G U A A C U C G A Met Ala His
  24. 25. A C U C G G G U A A C U C G A Met Ala His
  25. 26. A C U C G G G U A A C U C G A Met Ala His Try
  26. 27. A C U C G G G U A A C U C G A Met Ala His Try
  27. 28. A C U C G G G U A A C U C G A Met Ala His Try
  28. 29. A C U C G G G U A A C U C G A Met Ala His Try STOP
  29. 30. Met Ala His Try STOP
  30. 31. Met Ala His Try STOP PROTEÍNA

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