Answer: Because the (+) of RNA in their genome cannot function as mRNA .
Generally positive sense (+) RNA strand is a single strand RNA that can function directly as mRNA and transcribed to DNA.
Double stranded RNA virus does not contain enzymes to transcribe mRNA from RNA template so they carry their own RdRp ( RNA dependent RNA polymerase ) in their viral capsid.
Incorrect Question 6 0/0.5 pts Why must dsRNA viruses package an RNA-dependent RNA polymerase (RdRp) inside...
1. 3 pts each 30 pts total) Fill in each blank with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase should be used only once charged transduction lytic - strand promoter RBS lysozyme conjugation retrovirus RNA sigma factor clear origin transformation uncharged recombination +strand lysogen pause site cloudy Before transcription can begin, RNA polymerase finds the location and direction of a gene within the DNA based...