Bacterial pathogens may be controlled by ________, which are viruses that specifically infect and lyse the bacterial host.
Fill in the blank(s) with the appropriate word(s).
bacteriophage, phage
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An ? helix is formed by hydrogen bonds between:
A. nonpolar and polar R groups. B. positively charged and negatively charged R groups. C. the carbonyl oxygen and the amide nitrogen of alternate amino acids. D. the carbonyl oxygen and the amide nitrogen of every third amino acid. E. the carbonyl oxygen and the amide nitrogen of every fourth amino acid.
An organism's ecological role within the structure and function of a particular community is its:a
habitat. b. trophic level. c. population. d. ecological niche. e. competition.
Freshwater fishes excrete most of their nitrogenous wastes through the kidneys. Indicate whether the statement is true or false
The ENCODE project seeks to
A. sequence the genomes of all animals. B. identify the functional elements of the human genome. C. identify the coding sequences of human DNA. D. sequence the DNA of all organisms. E. identify the proteins encoded by the human genome.