Bacterial endospores function in
A. reproduction.
B. survival.
C. protein synthesis.
D. storage.
B. survival.
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Root nodules are
a. intertwined roots of different species of plants. b. connecting points between branching roots. c. symbiotic associations between a fungus and plant roots. d. specialized root hairs. e. localized swellings in plant roots filled with nitrogen-fixing bacteria.
You have identified a mutation in a gene that also seems to decrease transcription of another gene 2000 bp away from the mutation site. What regulatory sequence, which may be found within another gene, has likely been mutated in this instance?
A) core promoter B) proximal elements C) enhancer sequence D) homeodomain motif E) upstream activator sequence
A patient was admitted to the emergency department suffering from severe diarrhea that had lasted a couple of days. There had already been significant weight loss. On examination, his stool was very watery with white bits of mucus and little odor. What pathogen is likely causing this condition, and how does it cause disease?
What will be an ideal response?
Which of the following methods may introduce foreign DNA into a recipient?
A) transformation B) transduction C) conjugation D) transformation, transduction, and conjugation