Biology Final will be the death of me... HELP!?

suppose the west nile virus is a class IV virus, that is, containing a single stranded (+) RNA what will be the first step in its infection?


a. it will be translated into some of the early proteins, including those necessary for RNA replication


b. it will be reverse transcribed into a double stranded RNA molecule


c. it will integrate into the host cell genome using a host cell primase


d. it will have its introns removed by a spliceosome





a particular operon produces enzymes that manufacture an importan amino acid one would hypothesize that


a. the amino acid inactivates the repressor


b. the enzymes produced are called inducible enzymes


c. the repressor binds to the operator in the absence of the amino acid


d. the amino acid acts as a corepressor


e. the amino acid "turns on" enzyme synthesis





all of the following are noncoding eukaryotic DNA except


a. introns


b. repetitive DNA


c. psuedogenes


d. promoters


e. rRNA genes

Biology Final will be the death of me... HELP!?
a


d


e