In all cases, freezing kills microbes.
a. true
b. false
Ans: b. false
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George Beadle and Edward Tatum created a collection of mutants to study the following pathway
A mutant shows no growth on minimal media; however it shows growth if citrulline is provided. These results indicate the mutation would most likely be in the gene for: A. Enzyme I. B. Enzyme II. C. Enzyme III D. either Enzyme I or Enzyme II. E. either Enzyme II or Enzyme III.
These genes encode proteins that generally regulate the cell cycle in normal cells
a. tumor suppressor genes b. proto-oncogenes c. oncogenes d. tumor suppressor genes and proto-oncogenes e. tumor suppressor genes, proto-oncogenes, and oncogenes
Low intensity, long duration exercise results in ____
a. decreased capillary growth b. decreased number of mitochondria c. increased white fibers d. increased amounts of myoglobin e. no change in muscles
Groups of three consecutive bases along the DNA of a gene have the code for one
A. nucleotide. B. protein. C. purine. D. amino acid.