Question 1

What is the least number of tRNAs needed to carry isoleucine and what is the anticodon(s)?

Accepted Answer

A)  One-5'IAU3' 
B)  One-5'UAU3' 
C)  Two-5'GAU3' and 5'UAU3' 
D)  Two-5'AUA3' and 5'UAI3' 
A)  One-5'IAU3' 
B)  One-5'UAU3' 
C)  Two-5'GAU3' and 5'UAU3' 
D)  Two-5'AUA3' and 5'UAI3'

Question 2

In eukaryotic systems, which of the following typically stops the process of translation?

Accepted Answer

A)  Rho proteins 
B)  Aminoacyl tRNA synthase 
C)  rRNA 
D)  Stop codons 
E)  Introns 
A)  Rho proteins 
B)  Aminoacyl tRNA synthase 
C)  rRNA 
D)  Stop codons 
E)  Introns

Question 3

The primary structure of a protein is directly associated with .

Accepted Answer

A)  Regular repeating shapes, such as beta-sheets 
B)  The three-dimensional shape of the protein 
C)  The linear sequence of the amino acids 
D)  The interaction of two or more peptide chains 
A)  Regular repeating shapes, such as beta-sheets 
B)  The three-dimensional shape of the protein 
C)  The linear sequence of the amino acids 
D)  The interaction of two or more peptide chains

Question 4

A tRNA's anticodon is 5'GGC3'. What amino acid is attached to it?

Accepted Answer

A)  Glycine 
B)  Proline 
C)  Alanine 
D)  Arginine 
A)  Glycine 
B)  Proline 
C)  Alanine 
D)  Arginine

Question 5

Transcription and translation may occur simultaneously in prokaryotic cells.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is not a stop codon?

Accepted Answer

A)  UGA 
B)  UUA 
C)  UAG 
D)  UAA 
A)  UGA 
B)  UUA 
C)  UAG 
D)  UAA

Question 7

Cotranslational import occurs where?

Accepted Answer

A)  In the Golgi 
B)  In the nucleus 
C)  In the endoplasmic reticulum 
D)  Throughout the cell 
A)  In the Golgi 
B)  In the nucleus 
C)  In the endoplasmic reticulum 
D)  Throughout the cell

Question 8

What is responsible for binding the initiator tRNA?

Accepted Answer

A)  eIF2 
B)  EF-Tu 
C)  eIF3 
D)  EF-G 
A)  eIF2 
B)  EF-Tu 
C)  eIF3 
D)  EF-G

Question 9

Kozack's rules for translation are similar to those for transcription in prokaryotes in that they both contain consensus sequences. In prokaryotes, the promoter consensus sequences are at -35 and -10. Where is the consensus sequence for translational initiation according to Kozack's rules?

Accepted Answer

A)  -6 to +4 
B)  -12 to -2 
C)  +1 to +10 
D)  -9 to +1 
A)  -6 to +4 
B)  -12 to -2 
C)  +1 to +10 
D)  -9 to +1

Question 10

A polyribosome would be found in which of the following types of cells?

Accepted Answer

A)  Prokaryotic 
B)  Eukaryotic 
C)  Both 
A)  Prokaryotic 
B)  Eukaryotic 
C)  Both

Question 11

With regard to Chapeville's experiment, what could not be the radioactive element used to label cysteine?

Accepted Answer

A)  15N 
B)  35S 
C)  14C 
D)  3H 
A)  15N 
B)  35S 
C)  14C 
D)  3H

Question 12

eIF5 recruits what during the initiation stage?

Accepted Answer

A)  40S subunit 
B)  50S subunit 
C)  60S subunit 
D)  70S subunit 
A)  40S subunit 
B)  50S subunit 
C)  60S subunit 
D)  70S subunit

Question 13

An anticodon is located on which of the following?

Accepted Answer

A)  DNA 
B)  mRNA 
C)  rRNA 
D)  tRNA 
E)  snRNA 
A)  DNA 
B)  mRNA 
C)  rRNA 
D)  tRNA 
E)  snRNA

Question 14

Which of the following is not true regarding the experiments of Beadle and Tatum?

Accepted Answer

A)  They used the mold Neurospora as a model organism 
B)  They isolated strains that could not grow on minimal media 
C)  They established the link between a gene and an enzyme or protein 
D)  They were able to create loss-of-function mutations in any enzyme they chose 
A)  They used the mold Neurospora as a model organism 
B)  They isolated strains that could not grow on minimal media 
C)  They established the link between a gene and an enzyme or protein 
D)  They were able to create loss-of-function mutations in any enzyme they chose

Question 15

Which of the following would be considered an activated amino acid?

Accepted Answer

A)  Amino acid · ATP · aminoacyl-tRNA synthetase 
B)  Amino acid · aminoacyl-tRNA synthetase 
C)  Amino acid + AMP + PPi 
D)  Amino acid · AMP 
A)  Amino acid · ATP · aminoacyl-tRNA synthetase 
B)  Amino acid · aminoacyl-tRNA synthetase 
C)  Amino acid + AMP + PPi 
D)  Amino acid · AMP

Question 16

The enzyme that attaches free amino acids to the tRNA molecule is called tRNA attachase.

Accepted Answer

A) True 
 B)False

Question 17

What site on the ribosome is primarily responsible for holding the growing polypeptide?

Accepted Answer

A)  A 
B)  E 
C)  P 
A)  A 
B)  E 
C)  P

Question 18

A tRNA that has an amino acids attached is called .

Accepted Answer

A)  rRNA 
B)  Degenerate tRNA 
C)  Coding tRNA 
D)  Charged tRNA 
E)  None of the answers are correct 
A)  rRNA 
B)  Degenerate tRNA 
C)  Coding tRNA 
D)  Charged tRNA 
E)  None of the answers are correct

Question 19

The structure of the ribosome is uniform throughout a eukaryotic cell.

Accepted Answer

A) True 
 B)False

Question 20

Adenine can base pair with cytosine and guanine as well as uracil.

Accepted Answer

A) True 
 B)False

Exam 13: Translation of Mrna

What is the least number of tRNAs needed to carry isoleucine and what is the anticodon(s)?

In eukaryotic systems, which of the following typically stops the process of translation?

The primary structure of a protein is directly associated with .

A tRNA's anticodon is 5'GGC3'. What amino acid is attached to it?

Transcription and translation may occur simultaneously in prokaryotic cells.

Which of the following is not a stop codon?

Cotranslational import occurs where?

What is responsible for binding the initiator tRNA?

Kozack's rules for translation are similar to those for transcription in prokaryotes in that they both contain consensus sequences. In prokaryotes, the promoter consensus sequences are at -35 and -10. Where is the consensus sequence for translational initiation according to Kozack's rules?

A polyribosome would be found in which of the following types of cells?

With regard to Chapeville's experiment, what could not be the radioactive element used to label cysteine?

eIF5 recruits what during the initiation stage?

An anticodon is located on which of the following?

Which of the following is not true regarding the experiments of Beadle and Tatum?

Which of the following would be considered an activated amino acid?

The enzyme that attaches free amino acids to the tRNA molecule is called tRNA attachase.

What site on the ribosome is primarily responsible for holding the growing polypeptide?

A tRNA that has an amino acids attached is called .

The structure of the ribosome is uniform throughout a eukaryotic cell.

Adenine can base pair with cytosine and guanine as well as uracil.

Overview of Genetics

Mendelian Inheritance

Reproduction and Chromosome Transmission

Extensions of Mendelian Inheritance

Non-Mendelian Inheritance

Genetic Linkage and Mapping in Eukaryotes

Genetic Transfer and Mapping in Bacteria and

Variation in Chromosome Structure and Number

Molecular Structure of Dna and Rna

Chromosome Organization and Molecular Structure

Dna Replication

Gene Transcription and Rna Modification

Gene Regulation in Bacteria and Bacteriophages

Gene Regulation in Eukaryotes

Gene Mutation and Dna Repair

Recombination and Transposition at the Molecular

Recombinant Dna Technology

Biotechnology

Genomics I: Analysis of Dna

Genomics II: Functional Genomics, Proteomics, and

Medical Genetics and Cancer

Developmental Genetics

Population Genetics

Quantitative Genetics

Evolutionary Genetics

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