Spindles are ___.

A. permanent cell structures
B. present throughout every step of mitosis
C. present during interphase
D. mainly composed of microtubules
E. all identical


Answer: D

Biology & Microbiology

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Microscopic or macroscopic degenerative changes or abnormalities in infected host cells and tissues are called ________.

Fill in the blank(s) with the appropriate word(s).

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What type of root system do you see on the dandelion at the right?

What will be an ideal response?

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Cytotoxic T cells are best characterized by the following cell-surface marker

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