A centrosome is
a. a cylindrical structure made up of nine triplets of microtubules.
b. a chromosomal region that connects sister chromatids during mitosis and attaches them to the spindle.
c. a protein structure that binds centromeres and mediates the attachment of chromosomes to the spindle.
d. the major microtubule-organizing center in animal cells.
Ans: d. the major microtubule-organizing center in animal cells.
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DNA replication is usually unidirectional
Indicate whether this statement is true or false.
When a eukaryotic cell is not undergoing mitosis, the DNA and its associated proteins appear as a visible, thread-like mass called ________.
A. the nucleolus B. nucleoplasm C. chromatin D. the nucleosome E. the nuclear envelope
In what way do fungi reproduce?
a. asexually by spores only b. budding of the parent body only c. sexually by gametes only d. asexually by spores and budding of the parent body only e. asexually by spores, budding of the parent body, and sexually by gametes
Fluorescence microscopy is form of light microscopy
a. true b. false