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Bacterial Plasmids

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Questions and Answers

What was the initial assumption about DNA's ability to store genetic information?

That it was too simple (correct)

That it was too complex

That it was not related to genetic information

That it was not crucial

What was the purpose of Alfred Hershey and Martha Chase's experiment?

To identify the genetic material in pneumococci

To investigate if DNA or protein carries genetic information in a bacteriophage (correct)

To determine the protein structure of bacteriophage

To analyze the nucleotide sequence of DNA

What is the characteristic of DNA molecules?

They are composed of three polynucleotide chains

They are very small

They are not helical in structure

They are usually composed of two polynucleotide chains coiled together (correct)

What occurs when the rotation of a coil is restrained?

It coils on itself Signup and view all the answers

What are DNA, RNA, and proteins often called?

Informational molecules Signup and view all the answers

What did Oswald Avery and his colleagues set out to discover?

The genetic material responsible for transformation Signup and view all the answers

What is the term for a plasmid that integrates into the chromosome?

Episome Signup and view all the answers

What is the process called when a bacterium loses a plasmid?

Curing Signup and view all the answers

What is a characteristic of plasmid replication?

It uses the cell's DNA-synthesizing machinery Signup and view all the answers

What is the purpose of curing treatments?

To induce the loss of a plasmid from a bacterium Signup and view all the answers

What determines the effect of a mutation on an organism?

The environment in which the organism lives Signup and view all the answers

What is true about the inheritance of plasmids during cell division?

Plasmids are inherited stably, but may not always be equally apportioned Signup and view all the answers

What is the function of helicases during DNA replication in bacteria?

To separate the two parental strands of DNA at the replication forks Signup and view all the answers

In which direction do DNA polymerases catalyze DNA synthesis?

5' to 3' direction Signup and view all the answers

What is the function of topoisomerase during DNA replication?

To relieve strain by breaking, swiveling, and rejoining DNA strands Signup and view all the answers

Bacterial Plasmids

Choose a study mode

Podcast

Questions and Answers

What was the initial assumption about DNA's ability to store genetic information?

What was the purpose of Alfred Hershey and Martha Chase's experiment?

What is the characteristic of DNA molecules?

What occurs when the rotation of a coil is restrained?

What are DNA, RNA, and proteins often called?

What did Oswald Avery and his colleagues set out to discover?

What is the term for a plasmid that integrates into the chromosome?

What is the process called when a bacterium loses a plasmid?

What is a characteristic of plasmid replication?

What is the purpose of curing treatments?

What determines the effect of a mutation on an organism?

What is true about the inheritance of plasmids during cell division?

What is the function of helicases during DNA replication in bacteria?

In which direction do DNA polymerases catalyze DNA synthesis?

What is the function of topoisomerase during DNA replication?

What is the rate of elongation in bacteria during DNA synthesis?

What is the result of each nucleotide added to a growing DNA strand?

What is the region where DNA replication occurs called?

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