In which cell would you most likely find microtubules?
a. leaf cells of cut flowers displayed in a vase
b. any cell from a deceased animal
c. neuronal cells that have completed their growth and migration during development
d. rapidly dividing tumor cells
e. muscle cells, which do not typically divide
ANSWER: d
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Which of the following statements regarding transcription only apply to prokaryotes and not to eukaryotes?
A. A region of the promoter about 30 nucleotides upstream of +1 contains AT-rich base pairs. B. The RNA start site is designated +1. C. A region of the promoter about 10 nucleotides upstream of +1 contains AT-rich base pairs. D. Important sequence elements are frequently found downstream of +1. E. All of the choices given apply to eukaryotes.
All fungi gain the raw materials to build and maintain their cells by absorption from the environment
1.True 2.False
Which one of the following is a defining characteristic of animals but not of plants?
A) Autotrophic B) Heterotrophic C) Eukaryotic D) Prokaryotic
On occasion, chronic abusers of amphetamines have been misdiagnosed as suffering from:
A) panic disorder B) depression C) autism D) schizophrenia