Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

15 Questions

1 Views

DNA Repair Mechanisms Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main difference between direct reversal DNA repair and replacement of damaged nucleotide bases?

Direct reversal is specific to UV light damage, while replacement is more general.

Direct reversal is slower than replacement.

Direct reversal does not require a template, while replacement requires a template. (correct)

Direct reversal requires a template, while replacement does not.

Which enzyme is responsible for photoreactivation in direct reversal DNA repair?

Polymerase

Photolyase (correct)

Helicase

Methyltransferase

Why is direct reversal through photoreactivation not possible in humans?

Humans lack the enzyme required for photoreactivation. (correct)

Humans are not capable of repairing DNA damage.

Humans do not have the necessary light exposure.

Humans do not form pyrimidine dimers.

What is the function of the protein MGMT in direct reversal DNA repair?

It restores the original guanine base by transferring methyl groups. Signup and view all the answers

Which type of DNA damage does photoreactivation specifically address in direct repair?

Formation of pyrimidine dimers Signup and view all the answers

What is the result of methylation of guanine bases in DNA?

Formation of thymine bases Signup and view all the answers

Which enzyme accepts the alkyl group through its sulfur atom of a cysteine residue?

Suicide enzyme Signup and view all the answers

What happens to the enzyme once it transfers the alkyl group?

It becomes inactivated Signup and view all the answers

What term is used to describe an enzyme that becomes inactivated upon accepting an alkyl group?

Suicide enzyme Signup and view all the answers

Which repair mechanism involves the recognition and removal of a single damaged base?

Base Excision Repair Signup and view all the answers

What enzyme family is required for the base excision repair mechanism?

Glycosylases family Signup and view all the answers

Which repair mechanism is used to repair damage to DNA caused by the formation of pyrimidine dimers from UV light?

Nucleotide Excision Repair Signup and view all the answers

What is formed after glycosylases enzymes remove a damaged base during the repair process?

AP site Signup and view all the answers

Excision repair involves the removal and replacement of damaged DNA on which strand?

"Non-defective" strand Signup and view all the answers

"Nucleotide Excision Repair" recognizes what type of damage before initiating the repair process?

"Pyrimidine dimers formation" Signup and view all the answers

DNA Repair Mechanisms Quiz

Choose a study mode

Podcast

Questions and Answers

What is the main difference between direct reversal DNA repair and replacement of damaged nucleotide bases?

Which enzyme is responsible for photoreactivation in direct reversal DNA repair?

Why is direct reversal through photoreactivation not possible in humans?

What is the function of the protein MGMT in direct reversal DNA repair?

Which type of DNA damage does photoreactivation specifically address in direct repair?

What is the result of methylation of guanine bases in DNA?

Which enzyme accepts the alkyl group through its sulfur atom of a cysteine residue?

What happens to the enzyme once it transfers the alkyl group?

What term is used to describe an enzyme that becomes inactivated upon accepting an alkyl group?

Which repair mechanism involves the recognition and removal of a single damaged base?

What enzyme family is required for the base excision repair mechanism?

Which repair mechanism is used to repair damage to DNA caused by the formation of pyrimidine dimers from UV light?

What is formed after glycosylases enzymes remove a damaged base during the repair process?

Excision repair involves the removal and replacement of damaged DNA on which strand?

"Nucleotide Excision Repair" recognizes what type of damage before initiating the repair process?

More Like This

DNA Repair Mechanisms Quiz

Mastering Genetic Diseases

Biochem Lecture 8a

DNA Repair & Recombination Part-2 Lec 9 Quiz

Upgrade to continue