20. Which of the following are characteristics of bacterial plasmids?a. Useful cloning vectors b. DNA molecules that are linear c. Self-replicating, extrachromosomal DNA molecules d. Closed circular structure e. They have all of the bacterium’s genetic information

The plasmid is an extrachromosomal DNA in bacteria located in the cytoplasm of an organism.…

Answered: 20. Which of the following are…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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40 When Cas9 cuts DNA, it is a Question Listen DNA 4 Listen Protein When a spacer binds to it's target DNA it is a Questic RNA 40 Protein Question 13 RNA 41 Listen Question. DNA The larger the DNA fragment, the faster it moves through a gel a) True b) False Listen DNA moves toward the positive charged end of a gel a) True b) False Listen You have 200 copies of a DNA sequence. You perform 10 rounds of PCR. How many copies of the DNA sequence will you have? Just write the number. Do not include any commas or blanks.
2. Which one of the following statements is TRUE of bacterial transcription? A. It produces pre-mRNA molecules that contain introns B. It occurs simultaneously with translation C. It requires the action of the TATA-box binding protein D. It occurs in the cell's nucleus 3. Two methods for estimating how long ago an ERV integrated into the ancestral genome are: 5 A. Comparing the presence/absence profile among several species. B. Generation of a consensus sequence. C. Comparison of mutations in the LTRS D. Both A and C 4. Which one of the following describes an epigenetic change? A. A mutation in a gene coding sequence that affects phenotype and can be inherited B. A histone modification that prevents expression of a gene, sometimes resulting in a phenotypic change that is inherited c. An expanding repeat region that results in a phenotypic change. D. A mutation in a regulatory sequence that affects phenotype What does the Mediator plex do?
In lytic cycle of bacteriophage replication a. bacteriophage transfers bacterial DNA b. viral DNA masters the bacterial cell and the bacterial genome is degraded c. bacteria take up double stranded DNA from the environment d. a bacteriophage genome is integrated into the bacterial genome e. sex pilus is involved а. а b. b С. С d. d е. е
6. What is bacteria plasmid?
10. Replication is the flow of information from: a) DNAàDNA b) DNAà mRNA c) mRNAà polypeptide d) polypeptideà amino acids
75) In general DNA viruses are a. smaller than RNA viruses b. their mutation rate is higher than RNA viruses c. their replication site is mostly in the nucleus d. they depend on their viral enzymes for their replication.
21. DNA replication is A. Semiconservation B. Conservative C. Dispersive D. Heteroconservative
2. Compare and Contrast the horizontal gene transfer mechanisms of Transformation, Generalized Transduction, and HFR Conjugation. Identify the basic steps of each process and identify each mechanism's unique features. A. Transformation: 1. Basic process 2. Unique features: B. Generalized Transduction: 1. Basic process 2. Unique features: cy bluow bout C. HFR Conjugation: 1. Basic process 2. Unique features: lotno lanolighaans T eviliz09.A shular ano
7. Explain how PCR can be used to detect infectious agents in diagnoses of diseases.?
1. Describe a certain species to use to for recombiant plasmids and explain what recombinant plasmids will do?
13. In bacteria, mismatch repair involves:A. DNA glycosylase/lyaseB. AP endonucleaseC. RecA and LexA proteinsD. MutS, MutL and MutH proteinsE. UvrABC proteins 14. _______ involves an exchange of DNA between two interacting DNA molecules.A. TransferenceB. TranspositionC. Crossing overD. InductionE. None of the above 15. The bacterial core polymerase has two functions: 5' to 3' polymerase activity and _________________ activity.A. 5' to 3' exonucleaseB. 3' to 5' polymerase C. 3' to 5' exonuclease D. topoisomeraseE. none of the above
12. Penicillin only works on actively dividing bacterial cells because: a. it inhibits peptidoglycan (PG) synthesis b. it inhibits LPS synthesis c. it is no longer is effective against RNA and translation d. a & b e. a & c

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20. Which of the following are characteristics of bacterial plasmids? a. Useful cloning vectors b. DNA molecules that are linear c. Self-replicating, extrachromosomal DNA molecules d. Closed circular structure e. They have all of the bacterium's genetic information