Recombination & Transposons Quiz

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Genetic recombination basics

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Isabelle Shiraishi

United States

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Recombination & Transposons Quiz


Froggy Jumps Recombination & Transposons QuizOnline version Genetic recombination basics by Isabelle Shiraishi 1 Who demonstrated that allelic genes can exchange chromosomal locations via recombination in 1947? a Watson and Crick b Franklin and Wilkins c Hershey and Delbrück 2 What is Holliday junction? a A four-way DNA junction where strands are exchanged b A helical turn in DNA during replication c A protein complex that cuts DNA 3 Resolution of a Holliday junction can yield recombinant heteroduplex. Which pair can be recombinant after resolution? a aB, AB b Ab, aB c AB, ab 4 Which initiates homologous recombination in many models? a Single-strand breaks b Double-strand breaks (DSB) c RNA synthesis initiation 5 What are the three types of recombination discussed in this class? a End-repair, Ligation, Replication b Homologous recombination, Site-specific recombination, Transposition c Random recombination, Non-homologous recombination, Transcriptional recombination 6 What is the main role of recombination in evolution? a Direct protein synthesis from RNA b Replication of DNA c Exchange of DNA segments between molecules 7 Which repair pathways are associated with stalled or collapsed replication forks? a Non-homologous end joining (NHEJ) alone b RecA, RuvAB, RuvC, RecF, RecO, RecR for ss gaps c Only Ligase and Pol I 8 Site-specific recombination diagrams show two main outcomes. What are they? a Replication and Transcription b Inversion and Deletion/insertion c Transposition and Duplication 9 Transposable elements can be classified into three classes in prokaryotes. What is the simplest class? a Composite transposons b Tn transposons c Insertion sequences (IS elements) 10 What is a defining feature of replicative transposition? a The transposon is excised and reinserted at a new site b A copy of the transposon is inserted at the target site while another copy remains at the donor site c The transposon is copied and the original is degraded 11 There are two major modes of transposition. What are they? a Insertion and Deletion b Single-strand and Double-strand transposition c Cut-and-paste and Replicative transposition 12 What can transposons cause when two facing transposons recombine? a Protein misfolding b Gene deletion only c Inversion of a host DNA segment

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Recombination & Transposons Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Recombination & Transposons QuizOnline version

by Isabelle Shiraishi

Who demonstrated that allelic genes can exchange chromosomal locations via recombination in 1947?

What is Holliday junction?

Resolution of a Holliday junction can yield recombinant heteroduplex. Which pair can be recombinant after resolution?

Which initiates homologous recombination in many models?

What are the three types of recombination discussed in this class?

What is the main role of recombination in evolution?

Which repair pathways are associated with stalled or collapsed replication forks?

Site-specific recombination diagrams show two main outcomes. What are they?

Transposable elements can be classified into three classes in prokaryotes. What is the simplest class?

What is a defining feature of replicative transposition?

There are two major modes of transposition. What are they?

What can transposons cause when two facing transposons recombine?