Electronic Resource
New York, NY [u.a.]
:
Wiley-Blackwell
Journal of Cellular Physiology
70 (1967), S. 13-33
ISSN:
0021-9541
Keywords:
Life and Medical Sciences
;
Cell & Developmental Biology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Medicine
Notes:
Different species of viruses contain linear or circular DNA molecules. The circular molecules are either single-chained or circular duplexes. The linear molecules from various species are always duplex. However, they may be either unique or circularly permuted collections of sequences. All species of linear duplexes that can be successfully tested can be shown to be terminally repetitious. The two temperate phages that have been studied (λ and P22) are unique and permuted collections, respectively. Shortly after infection both of these molecules form closed helical rings (superhelices). Certain virulent phages show no evidence of superhelix formation. How unique and permuted collections are produced at maturation is a puzzle. In this respect, it is of interest that P22 is a generalized transducing phage, whereas λ is a specialized transducing one.
Additional Material:
20 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jcp.1040700404
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