The enzyme-linked virus-inducible system (ELVIS) uses a cloned -galactosidase gene that is expressed only when cells are infected with what virus?
a. RSV
b. Human immunodeficiency virus (HIV)
c. HSV
d. Cytomegalovirus (CMA)
C
The ELVIS uses a baby hamster kidney (BHK) cell culture system with a cloned (added) -galactosidase gene that is expressed only when cells are infected with an HSV.
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A veterinarian wants to determine what types of bacteria colonize in the mouths of cats. She takes a cheek swab from her pet cat. How can the veterinarian determine which bacteria are present in this sample? (Select all correct choices.)
A. She can culture the bacteria and look for different morphological characteristics. B. She can assess how many different rRNA sequences are in her sample. C. She can amplify whole genomes within her sample. D. She can determine which bacteria in her sample sexually reproduce.
Specific control points that are sensitive to extracellular conditions regulate G1-S transition in eukaryotic cells. Passage through the yeast Start point requires sufficient ________,
whereas passage through the animal cell restriction point requires the presence of ________. Fill in the blank with correct word.
Which fungal phylum includes organisms that are of significant value to humans, such as the yeast Saccharomyces cerevisiae, antibiotic-producing species of Penicillium, truffles, and morels?
a. Ascomycota b. Basidiomycota c. Chytridiomycota d. Glomeromycota
What are two of the characteristics of water that make it so important in living organisms?
What will be an ideal response?