Question 1

Terminally redundant DNA molecules:

Accepted Answer

A)  contain the same nucleotide sequence at both ends of a linear molecule 
B)  contain different nucleotide sequences at the ends of a linear molecule 
C)  contain the same nucleotide sequence in the middle segments of a linear molecule 
D)  All of these 
E)  None of these 
A)  contain the same nucleotide sequence at both ends of a linear molecule 
B)  contain different nucleotide sequences at the ends of a linear molecule 
C)  contain the same nucleotide sequence in the middle segments of a linear molecule 
D)  All of these 
E)  None of these

Question 2

Which of the following is an advantage of using bacteria for research over an organism like Drosophila? 
1)Bacteria are small and reproduce quickly
2)Bacteria can grow on artificial biochemically defined media
3)Bacteria have a simple structure and physiology

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  1 and 3 
E)  All of these 
A)  1 
B)  2 
C)  3 
D)  1 and 3 
E)  All of these

Question 3

Gene transfer in bacteria is:

Accepted Answer

A)  Unidirectional - from donor cells to recipient cells 
B)  Unidirectional - from recipient cells to donor cells 
C)  Bidirectional 
D)  Mutidirectional 
E)  None of these 
A)  Unidirectional - from donor cells to recipient cells 
B)  Unidirectional - from recipient cells to donor cells 
C)  Bidirectional 
D)  Mutidirectional 
E)  None of these

Question 4

What is the difference in the plaque morphology of r+ and r phage on E.coli B?

Accepted Answer

A)  r+ is larger than r 
B)  r is larger than r+ 
C)  r+ has sharper edges than r 
D)  r has sharper edges than r+ 
E)  None of these 
A)  r+ is larger than r 
B)  r is larger than r+ 
C)  r+ has sharper edges than r 
D)  r has sharper edges than r+ 
E)  None of these

Question 5

Which of the following sequences are terminally redundant and circularly permuted?

Accepted Answer

A)  (ABCD...WXYZ, BCDE...XYZA, CDEF...YZA
B)  
B)  (ABCD...YZAB, CDEF...ABCD, EFGH...CDEF) 
C)  (ABCD...YZAB, EFGH...CDEF, IJKL...GHJI) 
D)  (ABCD...WXYZ, ABCD....WXYZ, ABCD...WXYZ) 
E)  None of these 
A)  (ABCD...WXYZ, BCDE...XYZA, CDEF...YZA
B)  
B)  (ABCD...YZAB, CDEF...ABCD, EFGH...CDEF) 
C)  (ABCD...YZAB, EFGH...CDEF, IJKL...GHJI) 
D)  (ABCD...WXYZ, ABCD....WXYZ, ABCD...WXYZ) 
E)  None of these

Question 6

T4 contains a modified DNA base.Which base is modified and for what purpose?

Accepted Answer

A)  Cytosine; to protect phage DNA from phage encoded DNAse 
B)  Thymidine; to protect phage DNA from phage encoded DNAse 
C)  Cytosine; to increase transcription from phage promoters 
D)  Thymidine; to increase transcription from phage promoters 
E)  Adenine; to help rupture the bacterial plasma membrane 
A)  Cytosine; to protect phage DNA from phage encoded DNAse 
B)  Thymidine; to protect phage DNA from phage encoded DNAse 
C)  Cytosine; to increase transcription from phage promoters 
D)  Thymidine; to increase transcription from phage promoters 
E)  Adenine; to help rupture the bacterial plasma membrane

Question 7

In a mixed infection of T4 of genotype h+r X hr+ (where h is the mutant that produces clear plaques and r is the mutant that produces sharp edges)on a mixture of E.coli B and B2 cells,wild type recombinants form:

Accepted Answer

A)  Turbid plaques with sharp edges 
B)  Clear plaques with fuzzy edges 
C)  Turbid plaques with fuzzy edges 
D)  Clear plaques with sharp edges 
E)  Clear and turbid plaques with jagged edges 
A)  Turbid plaques with sharp edges 
B)  Clear plaques with fuzzy edges 
C)  Turbid plaques with fuzzy edges 
D)  Clear plaques with sharp edges 
E)  Clear and turbid plaques with jagged edges

Question 8

A virus that infects a bacterial cell is known as a:

Accepted Answer

A)  Bacteriolysin 
B)  Bacteriophage 
C)  Bacteria virus 
D)  Baculovirus 
E)  None of these 
A)  Bacteriolysin 
B)  Bacteriophage 
C)  Bacteria virus 
D)  Baculovirus 
E)  None of these

Question 9

Bacteria that can not synthesize all the necessary amino acids are known as:

Accepted Answer

A)  Prototrophs 
B)  Auxotrophs 
C)  Phototrophs 
D)  Heterotrophs 
E)  Chemoheterotrophs 
A)  Prototrophs 
B)  Auxotrophs 
C)  Phototrophs 
D)  Heterotrophs 
E)  Chemoheterotrophs

Question 10

Wild type bacteria that can synthesize all necessary metabolites are known as:

Accepted Answer

A)  Prototrophs 
B)  Auxotrophs 
C)  Phototrophs 
D)  Heterotrophs 
E)  Chemoheterotrophs 
A)  Prototrophs 
B)  Auxotrophs 
C)  Phototrophs 
D)  Heterotrophs 
E)  Chemoheterotrophs

Terminally redundant DNA molecules:

Which of the following is an advantage of using bacteria for research over an organism like Drosophila? 1)Bacteria are small and reproduce quickly 2)Bacteria can grow on artificial biochemically defined media 3)Bacteria have a simple structure and physiology

Gene transfer in bacteria is:

What is the difference in the plaque morphology of r⁺ and r phage on E.coli B?

Which of the following sequences are terminally redundant and circularly permuted?

T4 contains a modified DNA base.Which base is modified and for what purpose?

In a mixed infection of T4 of genotype h⁺r X hr⁺ (where h is the mutant that produces clear plaques and r is the mutant that produces sharp edges)on a mixture of E.coli B and B2 cells,wild type recombinants form:

A virus that infects a bacterial cell is known as a:

Bacteria that can not synthesize all the necessary amino acids are known as:

Wild type bacteria that can synthesize all necessary metabolites are known as:

The Science Of Genetics

Cellular Reproduction

Mendelism The Basic Principles Of Inheritance

Extensions Of Mendelism

The Chromosomal Basis Of Mendelism

Variation In Chromosome Number And Structure

Linkage,Crossing Over,And Chromosome Mapping In …

DNA And The Molecular Structure Of Chromosomes

Replication Of DNA And Chromosomes

Transcription And RNA Processing

Translation And The Genetic Code

Mutation,DNA Repair,And Recombination

The Techniques Of Molecular Genetics

Genomics

Applications Of Molecular Genetics

Transposable Genetics Elements

Regulation Of Gene Expression In Prokaryotes

Regulation Of Gene Expression In Eukaryotes

The Genetic Control Of Animal Development

The Genetic Basis Of Cancer

Inheritance Of Complex Traits

Population Genetics

Evolutionary Genetics

Filters

Exam 8: The Genetics Of Bacteria And Their Viruses

Terminally redundant DNA molecules:

Which of the following is an advantage of using bacteria for research over an organism like Drosophila? 1)Bacteria are small and reproduce quickly 2)Bacteria can grow on artificial biochemically defined media 3)Bacteria have a simple structure and physiology

Gene transfer in bacteria is:

What is the difference in the plaque morphology of r+ and r phage on E.coli B?

Which of the following sequences are terminally redundant and circularly permuted?

T4 contains a modified DNA base.Which base is modified and for what purpose?

In a mixed infection of T4 of genotype h+r X hr+ (where h is the mutant that produces clear plaques and r is the mutant that produces sharp edges)on a mixture of E.coli B and B2 cells,wild type recombinants form:

A virus that infects a bacterial cell is known as a:

Bacteria that can not synthesize all the necessary amino acids are known as:

Wild type bacteria that can synthesize all necessary metabolites are known as:

The Science Of Genetics

Cellular Reproduction

Mendelism The Basic Principles Of Inheritance

Extensions Of Mendelism

The Chromosomal Basis Of Mendelism

Variation In Chromosome Number And Structure

Linkage,Crossing Over,And Chromosome Mapping In …

DNA And The Molecular Structure Of Chromosomes

Replication Of DNA And Chromosomes

Transcription And RNA Processing

Translation And The Genetic Code

Mutation,DNA Repair,And Recombination

The Techniques Of Molecular Genetics

Genomics

Applications Of Molecular Genetics

Transposable Genetics Elements

Regulation Of Gene Expression In Prokaryotes

Regulation Of Gene Expression In Eukaryotes

The Genetic Control Of Animal Development

The Genetic Basis Of Cancer

Inheritance Of Complex Traits

Population Genetics

Evolutionary Genetics

Filters

What is the difference in the plaque morphology of r⁺ and r phage on E.coli B?

In a mixed infection of T4 of genotype h⁺r X hr⁺ (where h is the mutant that produces clear plaques and r is the mutant that produces sharp edges)on a mixture of E.coli B and B2 cells,wild type recombinants form: