Question 1

RAD genes are essential for recombination events during both mitosis and meiosis.

Accepted Answer

A) True 
 B)False  True

Question 2

A heteroduplex is a double helix with two strands from different DNA or RNA molecules.

Accepted Answer

A) True 
 B)False  True

Question 3

Site specific recombination only occurs for homologous sequences.

Accepted Answer

A) True 
 B)False  False

Question 4

The Holliday junction only forms during excision.

Accepted Answer

A) True 
 B)False

Question 5

Which enzyme is required for resolution of the Holliday junction?

Accepted Answer

A) resolvase 
B) integrase 
C) recombinase 
D) excisionase 
A) resolvase 
B) integrase 
C) recombinase 
D) excisionase

Question 6

Mutations in RAD genes causeــــــــــــــــــــــ .

Accepted Answer

A) recombination to occur randomly 
B) radiation sensitivity 
C) excessive recombination events during meiosis 
D) a decline in gamete production 
A) recombination to occur randomly 
B) radiation sensitivity 
C) excessive recombination events during meiosis 
D) a decline in gamete production

Question 7

Which of the following proteins is required for lambda integration in the genome of Escherichia coli?

Accepted Answer

A) transposase 
B) resolvase 
C) Int protein 
D) Xis protein 
A) transposase 
B) resolvase 
C) Int protein 
D) Xis protein

Question 8

Homologous recombination is ــــــــــــــــــــ.

Accepted Answer

A) the exchange of DNA between similar sequences 
B) the exchange of DNA between dissimilar sequences 
C) the formation of a heteroduplex 
D) the removal of a holiday junction 
A) the exchange of DNA between similar sequences 
B) the exchange of DNA between dissimilar sequences 
C) the formation of a heteroduplex 
D) the removal of a holiday junction

Question 9

Chi sites are ــــــــــــــــــــ.

Accepted Answer

A) generated from Holliday junctions 
B) inverted repeats 
C) binding sites for RecA protein 
D) specific sequences in prokaryotic genomes where crossovers occur 
A) generated from Holliday junctions 
B) inverted repeats 
C) binding sites for RecA protein 
D) specific sequences in prokaryotic genomes where crossovers occur

Question 10

Xis protein ـــــــــــــــــــــ.

Accepted Answer

A) is involved in X-inactivation in female animals 
B) helps recombine homologous sequences 
C) is used to excise previously recombined DNA segments 
D) all of the above 
A) is involved in X-inactivation in female animals 
B) helps recombine homologous sequences 
C) is used to excise previously recombined DNA segments 
D) all of the above

RAD genes are essential for recombination events during both mitosis and meiosis.

A heteroduplex is a double helix with two strands from different DNA or RNA molecules.

Site specific recombination only occurs for homologous sequences.

The Holliday junction only forms during excision.

Which enzyme is required for resolution of the Holliday junction?

Mutations in RAD genes causeــــــــــــــــــــــ .

Which of the following proteins is required for lambda integration in the genome of Escherichia coli?

Homologous recombination is ــــــــــــــــــــ.

Chi sites are ــــــــــــــــــــ.

Xis protein ـــــــــــــــــــــ.

Cells and Organisms

Basic Genetics

DNA, RNA, and Protein

Genes, genomes, and DNA

Manipulation of Nucleic Acids

Polymerase Chain Reaction

Recombinant DNA Technology

DNA Sequencing

Genomics Systems Biology

Cell Division and DNA Replication

Transcription of Genes

Processing of RNA

Protein Synthesis

Protein Structure and Function

Proteomics

Regulation of Transcription in Prokaryotes

Regulation of Transcription in Eukaryotes

Regulation at the RNA Level

Analysis of Gene Expression

Plasmids

Viruses

Mobile DNA

Mutations and Repair

Bacterial Genetics

Molecular Evolution

Filters

Exam 24: Recombination

RAD genes are essential for recombination events during both mitosis and meiosis.

A heteroduplex is a double helix with two strands from different DNA or RNA molecules.

Site specific recombination only occurs for homologous sequences.

The Holliday junction only forms during excision.

Which enzyme is required for resolution of the Holliday junction?

Mutations in RAD genes causeــــــــــــــــــــــ .

Which of the following proteins is required for lambda integration in the genome of Escherichia coli?

Homologous recombination is ــــــــــــــــــــ.

Chi sites are ــــــــــــــــــــ.

Xis protein ـــــــــــــــــــــ.

Cells and Organisms

Basic Genetics

DNA, RNA, and Protein

Genes, genomes, and DNA

Manipulation of Nucleic Acids

Polymerase Chain Reaction

Recombinant DNA Technology

DNA Sequencing

Genomics Systems Biology

Cell Division and DNA Replication

Transcription of Genes

Processing of RNA

Protein Synthesis

Protein Structure and Function

Proteomics

Regulation of Transcription in Prokaryotes

Regulation of Transcription in Eukaryotes

Regulation at the RNA Level

Analysis of Gene Expression

Plasmids

Viruses

Mobile DNA

Mutations and Repair

Bacterial Genetics

Molecular Evolution

Filters