<virology> A virus genetically deficient in replication, but that may nevertheless be replicated when it co-infects a host cell in the presence of a wild type helper virus. ... most acute transforming retroviruses are defective, since their acquisition of oncogenes seems to be accompanied by deletion of essential viral genetic information. .....
Found on
http://www.encyclo.co.uk/local/20973
one that cannot be completely replicated or cannot form a protein coat; in some cases replication can proceed if missing gene functions are supplied by other (helper) viruses; see helper virus.
Found on
http://www.encyclo.co.uk/local/21001
A virus genetically deficient in replication, but that may nevertheless be replicated when it co-infects a host cell in the presence of a wild-type 'helper' virus. Most acute transforming retroviruses are defective, since their acquisition of oncogenes seems to be accompanied by deletion of essential viral genetic information.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Type: Term Definitions: 1. a virus particle that contains insufficient nucleic acid to provide for production of all essential viral components; consequently, infectious virus is not produced except under certain conditions (when the host cell is infected with a 'helper' virus also).
Found on
http://www.medilexicon.com/medicaldictionary.php?t=98799
No exact match found.
