Spherical bacteria that occur in clusters are bacilli.
a. true
b. false
b. false
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When they ferment glucose, members of the genus Streptococcus produce lactic acid, but no gas.
Answer the following statement true (T) or false (F)
The three domains of life are ____
a. eukaryotes, prokaryotes, and viruses b. animals, plants, and microorganisms c. Prokaryota, Eukaryota, and Protostista d. Archaebacteria, Eubacteria, and Eukaryota e. Archaea, Bacteria, and Eukarya
What is the probability of two parents, genotypes Qq and QQ, having an offspring of genotype QQ.?
A. 1/4 B. 3/4 C. 0 D. 1/2 E. 1
A plasmid that has genes for resistance to two antibiotics, tetracycline and ampicillin, is cut with the restriction enzyme BamHI. BamHI cuts within the ampicillin resistance gene. Caenorhabditis elegans DNA that has been cut with BamHI is ligated into the linearized plasmid to make a genomic DNA library. The mixture is transformed into E. coli. Which antibiotic should be added to the medium to select cells that contain the recombinant plasmid?
A. ampicillin B. neither ampicillin or tetracycline C. tetracycline D. ampicillin and tetracycline E. x-gal