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WELCOME

WELCOME. Dr. J A M Azizul Haque Lecturer in Biology (Botany) Saturia Syed Kalu Shah College Saturia , Manikganj . azizulhe@gmail.com Web: www.azizulhaque.webs.com Mob: 01715 322 380. Biology 1 st Paper Class XI , Chapter II Nucleic Acid Duration of class 45.00 M.

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WELCOME

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  1. WELCOME Dr. J A M AzizulHaque Lecturer in Biology (Botany) Saturia Syed Kalu Shah College Saturia, Manikganj. azizulhe@gmail.com Web: www.azizulhaque.webs.com Mob: 01715 322 380 Biology 1st Paper Class XI, Chapter II Nucleic Acid Duration of class 45.00M.

  2. How DNA works?

  3. Learning outcome At the end of this class students --- a) Can speak the definition of ‘transformation’ and ‘translation’. b) Can describe codon and anticodon. c) Can explain protein synthesis from ribosome provided information from mRNA by DNA.

  4. RIBOSOME Ribosome 40S 60S 80S Ribosome Ribosome in the cell

  5. Transcription DNA template Nucleus mRNA mRNA Animal cell

  6. Triplet and Codon A A G T T C C G C U A U G G A G C C

  7. tRNA and Anticodon mRNA Anticodon Amino Acid tRNA

  8. Different codon & respective amino acid

  9. Protein Synthesis Transcription Nucleus Polypeptide chain Translation Cytoplasm

  10. mRNA Method of Translation

  11. Video http://ictinedubd.ning.com/video/protein-synthesis (Need internet connection)

  12. Group Work A T A GC C A T TG A C CT T A GC Write codon and anticodon sequence of mRNA and tRNA respectively by using DNA template above. Time: 10 .00 minutes

  13. Evaluation a) Where does protein synthesis take place? b) What is the difference between codon and anticodon? c) Explain the assembly of proteins by ribosomes?

  14. Assignment Why is protein synthesis important?

  15. Thanks a lot

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