Question 1

The discontinuous aspect of replication of DNA in vivo is caused by_________.

Accepted Answer

A) topoisomerases cutting the DNA in a random fashion 
B) sister- chromatid exchanges 
C) trinucleotide repeats 
D) the 5' to 3' polarity restriction 
E) polymerase slippage 
A) topoisomerases cutting the DNA in a random fashion 
B) sister- chromatid exchanges 
C) trinucleotide repeats 
D) the 5' to 3' polarity restriction 
E) polymerase slippage

Question 2

The protein responsible for the initial step in unwinding the DNA helix during replication of the bacterial chromosome is coded for by the_________ gene.

Accepted Answer

A) polB 
B) dnaA 
C) gyrA 
D) polA 
E) dnaE 
A) polB 
B) dnaA 
C) gyrA 
D) polA 
E) dnaE

Question 3

The protein product of the E.coli dnaE gene is a component of_________ .

Accepted Answer

A) DNA helicase 
B) DNA ligase 
C) primase 
D) DNA polymerase III 
E) DNA polymerase I 
A) DNA helicase 
B) DNA ligase 
C) primase 
D) DNA polymerase III 
E) DNA polymerase I

Question 4

The activity of_________ would be quickly undone in the absence of single- stranded binding protein.

Accepted Answer

A) DNA ligase 
B) DNA polymerase I 
C) primase 
D) DNA polymerase III 
E) DNA helicase 
A) DNA ligase 
B) DNA polymerase I 
C) primase 
D) DNA polymerase III 
E) DNA helicase

Question 5

Compare the rate of DNA replication in prokaryotes and eukaryotes.

Accepted Answer

Eukaryotic DNA polymerases syn

Question 6

If DNA replication were fully conservative,how many intact parental double helices would have been detected in Meselson and Stahl's experiment after three rounds of replication?

Accepted Answer

A) 1 
B) 7 
C) 8 
D) 0 
E) 3 
A) 1 
B) 7 
C) 8 
D) 0 
E) 3

Question 7

What is meant by processivity of a DNA- synthesizing enzyme?

Accepted Answer

The strength of the associatio

Question 8

Which of the following terms accurately describes the replication of DNA in vivo?

Accepted Answer

A) conservative 
B) dispersive 
C) nonreciprocal 
D) semidiscontinuous 
E) nonlinear 
A) conservative 
B) dispersive 
C) nonreciprocal 
D) semidiscontinuous 
E) nonlinear

Question 9

During DNA replication,_________are 1000- 2000 nucleotide long strands synthesized on the _________ strand to maintain the_________ of replication.

Accepted Answer

A) Okazaki fragments; leading,accuracy 
B) primers,lagging; continuity 
C) Okazaki fragments; lagging; bidirectionality 
D) primers; leading; discontinuity 
E) Okazaki fragments; leading; semidiscontinuity 
A) Okazaki fragments; leading,accuracy 
B) primers,lagging; continuity 
C) Okazaki fragments; lagging; bidirectionality 
D) primers; leading; discontinuity 
E) Okazaki fragments; leading; semidiscontinuity

Question 10

Structures located at the ends of eukaryotic chromosomes are called_________ .

Accepted Answer

A) permissive mutations 
B) recessive mutations 
C) telomeres 
D) centromeres 
E) telomerases 
A) permissive mutations 
B) recessive mutations 
C) telomeres 
D) centromeres 
E) telomerases

Exam 11: DNA Replication and Recombination

The discontinuous aspect of replication of DNA in vivo is caused by_________.

The protein responsible for the initial step in unwinding the DNA helix during replication of the bacterial chromosome is coded for by the_________ gene.

The protein product of the E.coli dnaE gene is a component of_________ .

The activity of_________ would be quickly undone in the absence of single- stranded binding protein.

Compare the rate of DNA replication in prokaryotes and eukaryotes.

If DNA replication were fully conservative,how many intact parental double helices would have been detected in Meselson and Stahl's experiment after three rounds of replication?

What is meant by processivity of a DNA- synthesizing enzyme?

Which of the following terms accurately describes the replication of DNA in vivo?

During DNA replication,_________are 1000- 2000 nucleotide long strands synthesized on the _________ strand to maintain the_________ of replication.

Structures located at the ends of eukaryotic chromosomes are called_________ .

Introduction to Genetics

Mitosis and Meiosis

Mendelian Genetics

Extensions of Mendelian Genetics

Chromosome Mapping in Eukaryotes

Genetic Analysis and Mapping in Bacteria and Bacteriophages

Sex Determination and Sex Chromosomes

Chromosome Mutations: Variation in Number and Arrangement

Extranuclear Inheritance

DNA Structure and Analysis

DNA Organization in Chromosomes

The Genetic Code and Transcription

Translation and Proteins

Gene Mutation,dna Repair,and Transposition

Regulation of Gene Expression in Bacteria

Transcriptional Regulation in Eukaryotes

Post-Transcriptional Regulation in Eukaryotes

Epigenetic Regulation in Eukaryotes

Recombinant Dna Technology

Genomic Analysis

Applications of Genetic Engineering and Biotechnology

Developmental Genetics

Cancer Genetics

Quantitative Genetics and Multifactorial Traits

Population and Evolutionary Genetics

CRISPR and Genomic Editing

DNA Forensics

Genomics and Precision Medicine

Genetically Modified Foods

Gene Therapy

Advances in Neurogenetics: The Study of Huntington Disease

Filters

During DNA replication,_____are 1000- 2000 nucleotide long strands synthesized on the _ strand to maintain the_____ of replication.