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Ch. 14 - Translation and Proteins

Chapter 14, Problem 13

A short RNA molecule was isolated that demonstrated a hyperchromic shift (see Chapter 10), indicating secondary structure. Its sequence was determined to be

     5'-AGGCGCCGACUCUACU-3'

If the molecule were an internal part of a message, what amino acid sequence would result from it following translation? (Refer to the code chart in Figure 13.7.)

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Hello everyone here we have a question asking a single amino acid coded by more than one code on is called A ambiguity of genetic code. Ambiguity of genetic code refers to the fact that multiple code ONs can code for the same amino acids. So A is incorrect. Be degeneracy of genetic code. This refers to the fact that one amino acid can be coded by multiple code ONs. So this is correct. But let's look at our other options. See non degenerate. See this refers to the fact that one coat on coats for one amino acid and not the other way around. So C. Is incorrect. De unambiguous genetic code. This refers to the fact that a certain code on will always code for the same amino acid wherever it is found. So D. Is incorrect. So our correct answer here is be degeneracy of genetic code. Thank you for watching. Bye.
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When a codon in an mRNA with the sequence 5'-UAA-3' enters the A site of a ribosome, it is not recognized by a tRNA with a complementary anticodon. Why not? What recognizes it instead?
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Textbook Question

Predict the amino acid sequence produced during translation by the following short hypothetical mRNA sequences (note that the second sequence was formed from the first by a deletion of only one nucleotide):

Sequence 1: 5'-AUGCCGGAUUAUAGUUGA-3'
Sequence 2: 5'-AUGCCGGAUUAAGUUGA-3'

What type of mutation gave rise to sequence 2?

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A short RNA molecule was isolated that demonstrated a hyperchromic shift (see Chapter 10), indicating secondary structure. Its sequence was determined to be

     5'-AGGCGCCGACUCUACU-3'

If the molecule were a tRNA fragment containing a CGA anticodon, what would the corresponding codon be?

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