Full Definition of DRAG. 1. : something used to drag with; especially: a device for dragging under water to detect or obtain objects. 2. : something that is dragged, pulled, or drawn along or over a surface: as a: harrow b: a sledge for conveying heavy bodies c: conveyance.3. drag. noun \Ëdrag\. Tweet. : someone or something that is boring, annoying, or disappointing. : someone or something that makes action or progress slower or more difficult. : the act of breathing in smoke from a cigarette, cigar, pipe, etc.
Briefly describe the difference between the lytic cycle of virulent phages and the lysogenic cycle of temperate phages. Virulent phages reproduce strictly by the lytic cycle and ultimately result in the death of the host bacterial cell. During the lytic cycle, a virus injects its genome into the host cell.The genome directs production and assembly of new viral particles. A viral enzyme is produced and breaks open the cell, releasing new viral particles into the environment.Temperature phages can utilize either the lytic or lysogenic cycle. The infection cycle begins when a viral particle injects its genome into the host cell.n the lysogenic cycle, the viral genome integrates into the host chromosome as a prophage. The inactive prophage can remain part of the bacterial chromosome for an extended period and is replicated along with the bacterial chromosome prior to cell division.
A virus that uses the lysogenic life cycle is termed either a provirus or prophage. What causes various proviruses to shift to the lytic cycle is not completely understood, but in some cases stress is the stimulus.These are newly discovered particles of RNA that are known to attack plants, at this point.his theory states that 15% of cancers are caused by viruses. One example is HPV, which causes cervical cancer i.e. cancer of the cervix in women. The virus is lysogenic and it inserts a destructive gene into the tumor suppressor T53 gene. This allows a mutated oncogene to cause a cell to become cancerous.