Question 1

The ________ (enzymes)link amino acids with their appropriate tRNAs.

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The answer of The ________ (enzymes)link amino acids with their...

Question 2

Typically,the first amino acid incorporated in bacterial protein synthesis is ________.

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The answer of Typically,the first amino acid incorporated in bacterial...

Question 3

Within the endoplasmic reticulum,________ recognizes misfolded or unassembled proteins and transports them back to the cytosol.

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The answer of Within the endoplasmic reticulum,________ recognizes misfolded or...

Question 4

The anticodon base ________ is able to bind U,C,or A,allowing for wobble in the anticodon region during translation.

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The answer of The anticodon base ________ is able to...

Question 5

The ________ allows for flexibility in the codon:anticodon interaction at the third position.

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The answer of The ________ allows for flexibility in the...

Question 6

Once an amino acid has been attached to the appropriate tRNA,the tRNA is called a(n)________,and the amino acid is said to be ________.

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The answer of Once an amino acid has been attached...

Question 7

The sequence of amino acids in a protein is based on the ________ of the mRNA.

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The answer of The sequence of amino acids in a...

Question 8

Design an experiment whereby you could determine that the genetic code of a novel organism is based on a four-nucleotide codon.

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The answer of Design an experiment whereby you could determine...

Question 9

________ degrades mRNAs that contain premature stops.

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The answer of ________ degrades mRNAs that contain premature stops....

Question 10

________ is a rare,intramolecular posttranslational process that allows for self-catalytic removal of specific amino acid sequences.

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The answer of ________ is a rare,intramolecular posttranslational process that...

Question 11

________ degrades mRNAs that contain no stop codons.

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The answer of ________ degrades mRNAs that contain no stop...

Question 12

The transfer of polypeptides into the ER is called ________ because the movement across the membrane is coupled with translation.

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The answer of The transfer of polypeptides into the ER...

Question 13

The newly arriving tRNA binds in the region of the ribosome known as the ________ site.

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The answer of The newly arriving tRNA binds in the...

Question 14

In bacteria,a unique RNA that binds the A site of the ribosome and directs the addition of approximately 12 amino acids to the nascent peptide when no stop codon is present is called the ________.

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The answer of In bacteria,a unique RNA that binds the...

Question 15

In cloning a gene,you discover that the gene product is much longer than should be observed based upon the insert you successfully cloned.What problems would result in a longer cloned sequence? How will you go about investigating your hypothesis? Would your answer change based upon the presence or absence of introns? Why or why not?

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The answer of In cloning a gene,you discover that the...

Question 16

You want to clone a eukaryotic gene and express the protein in yeast.However,the protein typically localizes within mitochondria.How will you perform your gene cloning so that the protein is secreted from the cell,rather than localized within yeast mitochondria?

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The answer of You want to clone a eukaryotic gene...

Question 17

Discuss some of the possible ways in which nonsense mutations can potentially be suppressed in a cell.

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Question 18

In bacteria,it is common to produce polycistronic messages,while in eukaryotes it is less common.Describe how polycistronic mRNAs are made and processed in prokaryotes and eukaryotes.How might polycistronic mRNA molecules be an advantage for eukaryotes?

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The answer of In bacteria,it is common to produce polycistronic...

Question 19

Match between columns
                        Premises: the initial amino acid is N-formylated
mRNA is translated 3' → 5'
presence of Shine–Delgarno sequence
AUG is the start codon
requires the presence of eIFs for translational initiation
peptide bond formation catalyzed by an RNA molecule

Accepted Answer

The Answer of neither prokaryotic nor eukaryotic protein synthesis and is...

Question 20

Match between columns
                        Premises: tRNA
peptidyl transferase
30S ribosomal subunit
stop codon
aminoacyl-tRNA synthetase
RNA polymerase
16S rRNA
elongation factor G
start codon
release factor

Accepted Answer

The Answer of AUG and catalyzes translocation of the ribosome is...

Quiz 22: Gene Expression: Iiprotein Synthesis and Sorting