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7: Genomes and Chromosomes pt2
Terms in this set (25)
Escherichia coli contains how many different DNA polymerase proteins?
The DNA proofreading activity is intrinsic to:
DNA pol III
Okazaki fragments are approximately how many bases in length?
Which molecule is responsible for removing torsional stress during DNA replication?
Which of the following is NOT involved in the replication termination process?
Two kinds of extragenomic DNA molecules are _________ and the genomes of __________.
Many phage genomes replicate __________, and they may copy only one strand.
The DNA of phage T4 replicates by the _________method.
Which of the following are NOT true of plasmids?
They are positively supercoiled.
A ________ occurs when multiple genomes are joined end to end.
The process of plasmid addiction is based on genes that code for:
long-lived toxin and short-lived antidote
Which statement is NOT true about bacteriophage T4 and its replication?
It precisely packages one full-length genome
________ is a process that involves cell-to-cell contact to move the plasmid from a donor cell to a recipient cell.
Eukaryotic chromosomes are _________, contained within a nucleus, and their replication involves the process of _________.
Which of the following is NOT true about histones?
They are acidic proteins.
_______ allow for an RNA primer to be synthesized so that the end of the eukaryotic chromosome can be replicated.
_________ and _________ are noncoding sequences that make up a large portion of eukaryotic chromosomes.
Introns and pseudogenes
Which of the following terms refers to gene-duplications that have decayed into nonfunctional entities?
Archaea resemble eukaryotes in all of the following EXCEPT:
Which step in DNA isolation from a bacterial cell is out of order?
Dissolve the cell membranes
_________ naturally function to cut the DNA of invading plasmids and phages at specific points.
Which of the following is NOT a palindrome?
Agarose gel electrophoresis separates DNA based on:
The ability of cohesive ends of DNA from different organisms to _________ forms the basis of recombinant DNA technology.
What is the correct order of the steps in a cycle of PCR?
denaturation, annealing, extension
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