In-Class Questions 1. What is a codon? How many total? How many amino acids exis

Question

In-Class Questions 1. What is a codon? How many total? How many amino acids exist? Thus the codon table has redundancies (degenerate). 2. How many codons code for amino acids? Which do NOT? 3. What is the start codon for translation of all mRNAs? 4. What are the termination (stop) codons? 5. List the two amino acids that do NOT have redundant codons (one unique codon causes their translation) DOLL onpanisme fers many sres for the lly singple s y double str NA is coimonly e pairs with e What Pairs

Explanation / Answer

1)codon is a sequence of nucleotides which specify an amino acid. Total number of 64 codons are present. 20 amino acids exists

2)61 codons code for amino acids

3 codons called nonsense codons or stop codons do not code for any amino acids. Such as UAG,UAA,UGA

3)AUG and GUG are start or initiator codon .GUG is an alternative initiative codon for methionine in prokaryotes

4) UAG,UGA,UAA are stop codons which do not code for any amino acid

5)methionine -AUG and UGG- tryptophan

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