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Protein synthesis Running Dictation

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Protein Synthesis (transcription & translation) running dication class activity for IB Biology.

Protein Synthesis (transcription & translation) running dication class activity for IB Biology.

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  • 1. Protein synthesis running dictation 1. Complete the DNA by adding the antisense (complementary) strand. Sense SET A T G A T G C C C T T T C A C T G T C G G G T A G T C C C T G A T T A C A G G T G A T Antisense (COMPLEMENTARY) -------------------cut---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2. Transcription (you are RNA polymerase) SET A Transcribe the antisense strand by complementary base-pairing it with RNA nucleotides. mRNA Remember: in RNA Thymine (T) is NOT used. It is replaced with Uracil (U). What does the ‘m’ in mRNA mean? How does the mRNA strand compare to the original DNA Sense strand? Send to the ribosome, through the nuclear membrane. -------------------cut----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 3. Identify the codons and write the amino acid sequence. You are the ribosome. (A)  Hint: scan through to find the START codon first (methionine). Sequence of amino acids: How many codons? How many amino acids? How many base pairs? Stephen Taylor i-Biology.net Resources: http://i-biology.net/ibdpbio/01-cells-and-energy/transcription-and-translation-inc-ahl-73-74/
  • 2. Protein synthesis running dictation 1. Complete the DNA by adding the antisense (complementary) strand. Sense SET B A T T A T G T T C C G A G A T T A C C A G A T T A C C A C G G A G T C A C C G T A A Antisense (COMPLEMENTARY) -------------------cut---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2. Transcription (you are RNA polymerase) SET B mRNA Remember: in RNA Thymine (T) is NOT used. It is replaced with Uracil (U). What does the ‘m’ in mRNA mean? Send to the ribosome, through the nuclear membrane. ----------------------cut---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 3. Identify the codons and write the amino acid sequence. You are the ribosome. (B)  Hint: scan through to find the START codon first (methionine). Sequence: 1. How many codons? 2. How many amino acids? 3. How many base pairs? Stephen Taylor i-Biology.net Resources: http://i-biology.net/ibdpbio/01-cells-and-energy/transcription-and-translation-inc-ahl-73-74/
  • 3. Protein synthesis running dictation 1. Complete the DNA. Sense Antisense (COMPLEMENTARY) SET A Answers T G A T G C C C T T T C A C T G T C G G G T A G T C C C T G A T T A C A G G T G A T a c t a c g g g a a a g t g a c a g c c c a t c a g g g a c t a a t g t c c a c t a -------------------------cut ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2. Transcription (you are RNA polymerase) mRNA SET A Answers U G A U G C C C U U U C A C U G U C G G G U A G U C C C U G A U U A C A G G U G A U Find start codon: MET pro phe his cys arg val val pro asp tyr arg STOP Send to the ribosome, through the nuclear membrane. ---------------------------cut ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 3. Identify the codons and write the amino acid sequence. You are the ribosome. Sequence: See above. How many codons?13 How many amino acids?12 How many base pairs?39 (in the coding section of the gene) Stephen Taylor i-Biology.net Resources: http://i-biology.net/ibdpbio/01-cells-and-energy/transcription-and-translation-inc-ahl-73-74/ SET A Answers
  • 4. Protein synthesis running dictation 1. Complete the DNA. Sense Antisense (COMPLEMENTARY) SET B Answers A T T A T G T T C C G A G A T T A C C A G A T T A C C A C G G A G T C A C C G T A A t a a t a c a a g g a t c t a a t g g t c t a a t g g t g c c t c a g t g g c a t t -------------------------------cut ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 2. Transcription (you are RNA polymerase) mRNA SET B Answers a u u A U G U U C C G A G A U U A C C A G A U U A C C A C G G A G U C A C C G U A A Find start codon MET phe arg asp tyr. gln lie lhr lhr glu ser pro STOP Send to the ribosome, through the nuclear membrane. ---------------------------------cut --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 3. Identify the codons and write the amino acid sequence. You are the ribosome. Sequence: As above. How many codons? 13 How many amino acids? 12 How many base pairs? 39 (in the coding section of the gene) Stephen Taylor i-Biology.net Resources: http://i-biology.net/ibdpbio/01-cells-and-energy/transcription-and-translation-inc-ahl-73-74/ SET B Answers

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