A change in the rate or frequency of movements in response to environmental stimuli is called taxis
a. True
b. False
ANSWER: False
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The second edition of Bergey's manual groups pathogenic species together rather than in phylogenetic groups.
Answer the following statement true (T) or false (F)
Proteins that do not align with known amino acid sequences fall into two classes: (1) ________ proteins are encoded by genes that have matches in the database but no function has yet been assigned to any of the sequences; (2) Proteins of ________ function are the products of genes unique to that organism.
What will be an ideal response?
A deletion was engineered into the coding sequence of DnaK of Escherichia coli. This mutation would most likely result in:
A. an increase of heat shock proteins. B. an increase in DnaJ. C. a temperature-sensitive bacteria. D. a temperature-resistant bacteria. E. a result that cannot be determined.
Choose the true statements about the human and mouse genomes.
_____ The human genome shares 99% of its genes with the mouse genome. _____ A comparison of genomes confirms that mice and humans shared a common ancestory more recently than humans and pufferfish. _____ Very few genes are conserved in the two genomes. _____ Little rearrangement of genes has occurred in the two genomes.