Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 20, Problem 18CONQ
Summary Introduction
To review:
The function of inverted repeat sequences during transposition.
Introduction:
The sequence of DNA (deoxyribonucleic acid) that changes the position in the genome, and at times reverses or creates mutations, thus altering the genome size and genetic identity of the cell is known as a transposable element. 0The result of copying of the similar genetic material is transposition. It was discovered in 1983, by Barbara McClintock, for which she even won a noble prize.
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For insertion elements and simple transposition, what is the function of the inverted repeat sequences during transposition? If a simple transposon is inserted into the sequence 5’-GACTC-3’, what would be the sequences that flank this transposon?
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During the process of transcription, the polymerase must handle several distinct polynucleotide chains: the double-stranded DNA ahead of the polymerase, the single-stranded template DNA, the nontemplate DNA strand, and the freshly-synthesized mRNA. How does the polymerase keep each of these strands--as well as the incoming ribonucleotides needed for the polymerase reaction--separate?
Chapter 20 Solutions
Genetics: Analysis and Principles
Ch. 20.1 - 1. Homologous recombination refers to the exchange...Ch. 20.1 - During the molecular process of homologous...Ch. 20.1 - 3. A key difference between the original Holliday...Ch. 20.1 - Which of the following mechanisms can cause gene...Ch. 20.2 - 1. During site-specific recombination that occurs...Ch. 20.2 - Prob. 2COMQCh. 20.3 - Which of the following types of transposable...Ch. 20.3 - Prob. 2COMQCh. 20.3 - Prob. 3COMQCh. 20 - 1. Describe the similarities and differences...
Ch. 20 - Prob. 2CONQCh. 20 - 3. Which steps in the double-strand break model...Ch. 20 - Prob. 4CONQCh. 20 - Prob. 5CONQCh. 20 - Prob. 6CONQCh. 20 - Prob. 7CONQCh. 20 - 8. What is gene conversion?
Ch. 20 - Make a list of the differences between the...Ch. 20 - Prob. 10CONQCh. 20 - Prob. 11CONQCh. 20 - 12. According to the double-strand break model,...Ch. 20 - What type of DNA structure is recognized by RecG...Ch. 20 - Briefly describe three ways that antibody...Ch. 20 - 15. Describe the functions of the RAG1 and RAG2...Ch. 20 - According to the scenario shown in Figure 20.7,...Ch. 20 - Prob. 17CONQCh. 20 - Prob. 18CONQCh. 20 - 19. Why does transposition always produce direct...Ch. 20 - 20. Which types of TEs have the greatest potential...Ch. 20 - Prob. 21CONQCh. 20 - 22. Let’s suppose that a species of mosquito has...Ch. 20 - This chapter describes different types of TEs,...Ch. 20 - Prob. 24CONQCh. 20 - Prob. 25CONQCh. 20 - 26. What is the difference between an autonomous...Ch. 20 - 1. Briefly explain how McClintock determined that...Ch. 20 - The work of McClintock showed that the presence of...Ch. 20 - 3. In your own words, explain the term transposon...Ch. 20 - Prob. 4EQCh. 20 - 5. Gerald Rubin and Allan Spradling devised a...Ch. 20 - Make a list of the similarities and differences...Ch. 20 - Prob. 2QSDCCh. 20 - Prob. 3QSDC
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- What are transposable elements? Explain the mechanism by which they move from one location to another in the genome.arrow_forwardWhat happens when a nonsense mutation is introduced into a transposon's gene encoding transposase? Only use 1-4 sentences to explain.arrow_forwardWhat is the primary difference between a composite transposon and a simple transposon?arrow_forward
- What causes trinucleotide repeat expansion?arrow_forwardWhich of the following is NOT true of transposition? A) a replicative form of transposition is possible for DNA-only transposition B) flanking direct repeats are a by-product of transposition formed at the transposition site C) inverted repeats are formed in all types of transposons D long-terminal repeats are found in the class of retrotransposons that resemble retrovirusesarrow_forwardWhat features distinguish a transposon from a retrotransposon?How are their sequences different, and how are their mechanismsof transposition different?arrow_forward
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genetic recombination strategies of bacteria CONJUGATION, TRANSDUCTION AND TRANSFORMATION; Author: Scientist Cindy;https://www.youtube.com/watch?v=_Va8FZJEl9A;License: Standard youtube license