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Questions:

1. What 3 codons act as signals to stop protein synthesis?



2. What codon initiates (begins) protein synthesis)?


3. List ALL of the codons for leucine.



4. Why do you think some amino acids have more than one codon? What does this tell you about the frequency or importance of that acid?






Name ALL the codons for these amino acids:

4. Phenylalanine –



5. Serine (Ser) –



6. Isoleucine (Ile) –



7. Valine (Val) –



9. Glycine (Gly) –



10. Alanine (Ala)–



11. Threonine (Thr)-



12. If the DNA sequence is --- AAA TAT CCG TAG CAA ATG CGC, write the mRNA sequence, tRNA anticodon sequence, and the six amino acids for this.


DNA: AAA TAT CCG TAG CAA ATG CGC


mRNA: _______________________________________________________


tRNA: ________

Respuesta :

huda9210

Answer:

1. There are 3 STOP codons in the genetic code - UAG, UAA, and UGA. These codons signal the end of the polypeptide chain during translation.

2. Reading the genetic code

Methionine is specified by the codon AUG, which is also known as the start codon. Consequently, methionine is the first amino acid to dock in the ribosome during the synthesis of proteins.

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