An oncogene is a viral gene that was derived from a cellular gene and causes cancer.

Which choice correctly fills in the blank? RNA polymerase will begin transcription when it binds to the _______.

Constitutive genes are expressed at a fixed rate and are not inducible or repressible.

The RPO position (Judet Method) of the right acetabulum will best demonstrate the

25.  These are Gelatin tube media.  Describe the reactions in tubes A and B. Include how you can differentiate a false + reaction from a true + reaction.

24.  These are Phenylalanine media inoculated with 2 different organisms A and B.  Describe the reactions in Tubes A and B.  What reagent is responsible for the color in tube B.                           A                       B        

Virus host range is determined by virus ligand binding to a specific host cell receptor.

Which choice describes a difference between Hfr X F(-) and F(+) X F(-) conjugation?

1.  According to the handout distributed and discussed in the class, there are 5 biochemical tests that can help you identify the genus of gram – organisms. Name 3 of the biochemical tests.

Why can HIV be an oncovirus? (one sentence should suffice)