Question 1

Briefly describe the events of transcription in a living cell.

Accepted Answer

The DNA helix surrounding the location o

Question 2

What is alternative splicing and how does it occur?

Accepted Answer

Introns are removed from eukaryotic mRNA

Question 3

Which of these is NOT a step in transcription?

Accepted Answer

A)  replication 
B)  initiation 
C)  termination 
D)  elongation 
E)  unwinding 
A)  replication 
B)  initiation 
C)  termination 
D)  elongation 
E)  unwinding

Question 4

Hypothetically speaking,a particular protein named GOTEAM is 1,000 amino acids and is known to be involved in the phenotype,"avid football fan." Some individuals have been genotyped and were found to have a deletion of 2 nucleotides near the 5' end of the GOTEAM gene.Other individuals have been found to have a deletion of 99 bases in the same region.What is the length of GOTEAM gene? Which mutation do you think would be more likely to be the most deleterious to the GOTEAM phenotype?

Accepted Answer

The coding region of GOTEAM is 3,000 bas

Question 5

The sequences within mRNA that are spliced out (removed)are called

Accepted Answer

A)  extremes. 
B)  exons. 
C)  inclusions. 
D)  introns. 
E)  UTRs. 
A)  extremes. 
B)  exons. 
C)  inclusions. 
D)  introns. 
E)  UTRs.

Question 6

Ribosomes are composed of

Accepted Answer

A)  tRNA and protein. 
B)  mRNA and protein. 
C)  rRNA and protein. 
D)  only proteins folded together. 
E)  only RNA molecules folded together. 
A)  tRNA and protein. 
B)  mRNA and protein. 
C)  rRNA and protein. 
D)  only proteins folded together. 
E)  only RNA molecules folded together.

Question 7

The cellular organelle responsible for protein synthesis is the

Accepted Answer

A)  nucleus. 
B)  mitochondria. 
C)  centrioles. 
D)  ribosome. 
E)  polymerase. 
A)  nucleus. 
B)  mitochondria. 
C)  centrioles. 
D)  ribosome. 
E)  polymerase.

Question 8

The scientists credited with postulating the basis for the genetic code are

Accepted Answer

A)  Hershey and Chase. 
B)  Griffith and Avery. 
C)  Beadle and Tatum. 
D)  Cohen and Boyer. 
E)  Watson and Crick. 
A)  Hershey and Chase. 
B)  Griffith and Avery. 
C)  Beadle and Tatum. 
D)  Cohen and Boyer. 
E)  Watson and Crick.

Question 9

Exons are excised from mRNA.

Accepted Answer

A) True 
 B)False

Question 10

What is a leading theory for the existence of introns?

Accepted Answer

A)  Introns are produced by insertion of viral genomes. 
B)  Introns accelerate RNA translation. 
C)  Introns facilitate protein evolution and adaptation. 
D)  Introns accelerate RNA transcription. 
E)  Introns are inherited in evolution from prokaryotes. 
A)  Introns are produced by insertion of viral genomes. 
B)  Introns accelerate RNA translation. 
C)  Introns facilitate protein evolution and adaptation. 
D)  Introns accelerate RNA transcription. 
E)  Introns are inherited in evolution from prokaryotes.

Question 11

Which enzyme forms peptide bonds between adjacent amino acids during polypeptide synthesis?

Accepted Answer

A)  RNA polymerase 
B)  phosphotransferase 
C)  peptidyl transferase 
D)  ribonuclease 
E)  protein polymerase 
A)  RNA polymerase 
B)  phosphotransferase 
C)  peptidyl transferase 
D)  ribonuclease 
E)  protein polymerase

Question 12

Nonsense codon and stop codon are synonymous.

Accepted Answer

A) True 
 B)False

Question 13

Outline the steps of translation in prokaryotes.

Accepted Answer

The 30S subunit of a ribosome binds to t

Question 14

A mutation that changes a codon that originally coded for an amino acid into a stop codon is called a

Accepted Answer

A)  frameshift mutation. 
B)  missense mutation. 
C)  silent mutation. 
D)  nonsense mutation. 
E)  dominant mutation. 
A)  frameshift mutation. 
B)  missense mutation. 
C)  silent mutation. 
D)  nonsense mutation. 
E)  dominant mutation.

Question 15

Design an experiment to show that the amino acid carried by a tRNA does not influence the genetic code.

Accepted Answer

Take a natural tRNA and its amino acid (

Question 16

In vitro translation allows the determination of protein sequence.

Accepted Answer

A) True 
 B)False

Briefly describe the events of transcription in a living cell.

What is alternative splicing and how does it occur?

Which of these is NOT a step in transcription?

The sequences within mRNA that are spliced out (removed)are called

Ribosomes are composed of

The cellular organelle responsible for protein synthesis is the

The scientists credited with postulating the basis for the genetic code are

Exons are excised from mRNA.

What is a leading theory for the existence of introns?

Which enzyme forms peptide bonds between adjacent amino acids during polypeptide synthesis?

Nonsense codon and stop codon are synonymous.

Outline the steps of translation in prokaryotes.

A mutation that changes a codon that originally coded for an amino acid into a stop codon is called a

Design an experiment to show that the amino acid carried by a tRNA does not influence the genetic code.

In vitro translation allows the determination of protein sequence.

Mendels Principles of Heredity

Extensions to Mendels Laws

The Chromosome Theory of Inheritance

Linkage, Recombination, and the Mapping of Genes on Chromosomes

Dna Structure, Replication, and Recombination

Gene Expression: the Flow of Information From Dna to Rna to Protein

Digital Analysis of Genomes

Genome Annotation

Analyzing Genomic Variation

The Eukaryotic Chromosome

Chromosomal Rearrangements and Changes in Chromosome Number

Bacterial Genetics

Organellar Inheritance

Gene Regulation in Prokaryotes

Gene Regulation in Eukaryotes

Manipulating the Genomes of Eukaryotes

The Genetic Analysis of Development

The Genetics of Cancer

Variation and Selection in Populations

Genetics of Complex Traits

Exploring Synthetic Biology: Concepts, Techniques, and Applications

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Exam 6: Anatomy and Function of a Gene: Dissection Through Mutation

Briefly describe the events of transcription in a living cell.

What is alternative splicing and how does it occur?

Which of these is NOT a step in transcription?

The sequences within mRNA that are spliced out (removed)are called

Ribosomes are composed of

The cellular organelle responsible for protein synthesis is the

The scientists credited with postulating the basis for the genetic code are

Exons are excised from mRNA.

What is a leading theory for the existence of introns?

Which enzyme forms peptide bonds between adjacent amino acids during polypeptide synthesis?

Nonsense codon and stop codon are synonymous.

Outline the steps of translation in prokaryotes.

A mutation that changes a codon that originally coded for an amino acid into a stop codon is called a

Design an experiment to show that the amino acid carried by a tRNA does not influence the genetic code.

In vitro translation allows the determination of protein sequence.

Mendels Principles of Heredity

Extensions to Mendels Laws

The Chromosome Theory of Inheritance

Linkage, Recombination, and the Mapping of Genes on Chromosomes

Dna Structure, Replication, and Recombination

Gene Expression: the Flow of Information From Dna to Rna to Protein

Digital Analysis of Genomes

Genome Annotation

Analyzing Genomic Variation

The Eukaryotic Chromosome

Chromosomal Rearrangements and Changes in Chromosome Number

Bacterial Genetics

Organellar Inheritance

Gene Regulation in Prokaryotes

Gene Regulation in Eukaryotes

Manipulating the Genomes of Eukaryotes

The Genetic Analysis of Development

The Genetics of Cancer

Variation and Selection in Populations

Genetics of Complex Traits

Exploring Synthetic Biology: Concepts, Techniques, and Applications

Filters