Identify and provide specific examples of the classes of macromolecules that are associated with life.
What will be an ideal response?
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For some virulent phages, fragments of the host DNA may be included in the heads as the viral particles assemble, providing the basis for transduction of bacterial genes during the next cycle of infection. This mechanism is termed:
a. transformation. b. transmutation. c. metabolism. d. specific transduction. e. generalized transduction.
What are the phases of mitosis in the correct order?
a. prophase, telophase, prometaphase, metaphase, anaphase b. metaphase, prometaphase anaphase, telophase, prophase c. prophase, prometaphase, metaphase, anaphase, telophase d. prometaphase, metaphase, prophase, anaphase, telophase
Which of the listed statements describes the results of the following reaction? C6H12O6 + 6 O2 ? 6 CO2 + 6 H2O + Energy
A) C6H12O6 is oxidized and O2 is reduced. B) O2 is oxidized and H2O is reduced. C) CO2 is reduced and O2 is oxidized. D) O2 is reduced and CO2 is oxidized.
Suppose Pasteur's swan-necked flasks containing boiled broth became cloudy (evidence of bacterial growth) 24 hours after boiling. Which chose could best explain the turbidity or cloudiness in the broth without supporting spontaneous generation?
a. endospores in the broth survived boiling and grew after the broth cooled b. contaminating organisms in the broth killed by being become alive again after the broth cooled c. chemicals in the broth came together to form living organisms d. the broth allowed light o pass through it with less interference after boiling