What is the event that begins prometaphase?

a) the dissolution of the nuclear envelope
b) the reappearance of the nucleolus
c) the disappearance of the nucleolus
d) the completion of the connection of chromosomes to the spindle
e) the complete compaction of the chromosomes


Ans: a) the dissolution of the nuclear envelope

Biology & Microbiology

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Which statement about the humors of the eye is true?

A) The vitreous humor fills the chamber behind the lens. B) The vitreous humor circulates throughout the eye. C) The aqueous humor is jellylike. D) The humors help keep the outside of the eye moist.

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The hormone gastrin is released by the stomach. Its function is to stimulate the release of gastric juices. What is the stimulus to release this hormone?

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Biology & Microbiology