Molecular Biology Module 4: Translation

The alanine aminoacyl tRNA synthetase enzyme of E. coli recognizes the alanine tRNA only by an unusual G:U base pair at position 70 in the stem of the tRNA. In the laboratory, you make a copy of the alanine tRNA gene that is identical to the wildtype copy except that the anicodon sequence 5' - IGC -3' is replaced with the sequence 5' - UCA -3'. You then add this mutant tRNA gene back into a wildtype E. coli. As a result,

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Complete the following sentence. The covalent bond between a tRNA and its amino acid is catalysed:

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You have found an E. coli that is mutant at the gene encoding EF-Tu. The only effect of the mutation is to decrease the rate of hydrolysis of EF-Tu-GTP. The effect of this mutation will most likely be:

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In humans there are 64 codons. 61 of these code for amino acids. There are 20 amino acids. There are 31 tRNAs. How many different aminoacyl tRNA synthetases are there?

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Look at the genetic code included with the exam. What is the minimum possible number of different tRNAs to be charged with Serine?

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Formation of peptide bonds during protein synthesis is catalysed by:

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Which of the following are correct? Because of the differences in the translation machinery between Prokaryotes and Eukaryotes:

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Under conditions where methionine must be the first amino acid, what protein would be coded for by the following mRNA? 5'-CCUCAUAUGCGCCAUUAUAAGUGACACACA-3'

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Which best fits the process of translation

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This is an important step in translation. It is mediated by:

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Molecular Biology Module 4: Translation

Discuss, Learn and be Happy דיון בשאלות

Complete the following sentence. The covalent bond between a tRNA and its amino acid is catalysed:

You have found an E. coli that is mutant at the gene encoding EF-Tu. The only effect of the mutation is to decrease the rate of hydrolysis of EF-Tu-GTP. The effect of this mutation will most likely be:

In humans there are 64 codons. 61 of these code for amino acids. There are 20 amino acids. There are 31 tRNAs. How many different aminoacyl tRNA synthetases are there?

Look at the genetic code included with the exam. What is the minimum possible number of different tRNAs to be charged with Serine?

Formation of peptide bonds during protein synthesis is catalysed by:

Which of the following are correct? Because of the differences in the translation machinery between Prokaryotes and Eukaryotes:

Under conditions where methionine must be the first amino acid, what protein would be coded for by the following mRNA? 5'-CCUCAUAUGCGCCAUUAUAAGUGACACACA-3'

Which best fits the process of translation

This is an important step in translation. It is mediated by:

Molecular Biology Module 4: Translation

Discuss, Learn and be Happy דיון בשאלות

Complete the following sentence. The covalent bond between a tRNA and its amino acid is catalysed:

You have found an E. coli that is mutant at the gene encoding EF-Tu. The only effect of the mutation is to decrease the rate of hydrolysis of EF-Tu-GTP. The effect of this mutation will most likely be:

In humans there are 64 codons. 61 of these code for amino acids. There are 20 amino acids. There are 31 tRNAs. How many different aminoacyl tRNA synthetases are there?

Look at the genetic code included with the exam. What is the minimum possible number of different tRNAs to be charged with Serine?

Formation of peptide bonds during protein synthesis is catalysed by:

Which of the following are correct? Because of the differences in the translation machinery between Prokaryotes and Eukaryotes:

Under conditions where methionine must be the first amino acid, what protein would be coded for by the following mRNA? 5'-CCUCAUAUGCGCCAUUAUAAGUGACACACA-3'

Which best fits the process of translation

This is an important step in translation. It is mediated by: