________ are infectious RNAs that are responsible for diseases in several crop plants, such as tobacco
Fill in the blank with correct word.
Answer: Viroids
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When a mixture of debris from killed virulent bacteria and living non-virulent bacteria are injected into mice:
A. the mice are killed because the virulent bacteria are revived. B. the mice survive because none of the living bacteria are virulent. C. the mice survive for a period of a few weeks and then die from an unrelated illness. D. half the mice are killed and the other half survive. E. the mice are killed because the non- virulent bacteria are transformed into virulent bacteria.
Which of the following has the most energy?
a. phosphoglycerate (PGA) b. ribulose bisphosphate (RuBP) c. phosphoglyceraldehyde (PGAL) d. glucose e. rubisco
Africanized bees ____ than European
honeybees. a. make less honey b. respond more quickly to perceived threats c. are more aggressive stingers d. are more likely to abandon their colony after being disturbed e. do all of these
Release of T4 phage from host cells after assembly ________.
A. requires holin protein that allows the T4 lysozyme to attack the peptidoglycan B. occurs by exocytosis C. occurs by extrusion and does not result in cell lysis D. depends on a protein that interacts with MurA and interferes with normal peptidoglycan synthesis