Lifelong immunity is conferred once an individual has had botulism and recovered

Indicate whether the statement is true or false


FALSE

Biology & Microbiology

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If you were to view a sample of animal tissue under a light microscope and notice an extensive extracellular matrix surrounding a tissue, which tissue type would you most suspect?

A) connective B) cardiac muscle C) epithelial D) nervous E) striated muscle

Biology & Microbiology

If the hypothesis that protocells were based on an "RNA world" is correct, what would be necessary to shift to a "DNA world"?

A. an enzyme or reaction capable of removing one oxygen from ribose in nucleotides B. new enzymes for transcribing DNA back to RNA C. enzymes for reverse transcription of RNA into DNA D. new enzymes to replicate the DNA E. All would be necessary to switch to a "DNA world."

Biology & Microbiology

Steroid hormones act more slowly and maintain their effects longer than peptide hormones.

Answer the following statement true (T) or false (F)

Biology & Microbiology

There is only a single ________ from a gene

a. mature transcript b. primary transcript c. polypeptide d. protein e. none of the above

Biology & Microbiology