For each of the following E. coli partial diploid strains, indicate whether expression of -galactosidase and permease is inducible (I), constitutive (C), or negative (no product made) (N). Assume glucose levels are very low
Which of the strains are able to use lactose as their sole carbon source?
Only strain c is able to use lactose as its sole carbon source. Strains a and d never make permease and strain b never makes -galactosidase.
Biology & Microbiology
You might also like to view...
Tropical forests make up 6 percent of total land mass but contain an estimated ________ of all species on Earth
A) 1 percent B) 6 percent C) 50 percent D) 90 percent
Biology & Microbiology
The process of making an RNA copy of a gene is called ________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Which one of the following is NOT a morphological type of virus?
a) Helical b) Polymorphic c) Polyhedral d) Enveloped
Biology & Microbiology
What are the branched extensions of a neuron that receive signals called?
A. Dendrites B. Cell bodies C. Oligodendrocytes D. Synapses E. Axons
Biology & Microbiology