The spindle assembly checkpoint monitors the alignment of chromosomes in the mitotic spindle during mitosis to insure an even distribution of chromosomes to each of the daughter cells. If the chromosomes do not align properly, the spindle assembly checkpoint will arrest cells in what phase of mitosis?
a. Prophase
b. Metaphase
c. Anaphase
d. Telophase
Ans: b. Metaphase
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Which one of the following is characteristic of an exocrine gland but NOT of an endocrine gland?
A) produces hormones B) can generate and transmit nerve impulses C) releases its products into a duct D) releases gland products into the blood E) is composed entirely of connective tissue
Which of the following is considered part of a living organism's metabolism?
A) secretion of wastes B) growth and development C) responses to external stimuli D) reproduction
The type of epithelial tissue you would expect to find lining the upper respiratory tract is:
a. pseudostratified columnar epithelium. b. simple squamous epithelium. c. ciliated columnar epithelium. d. stratified squamous epithelium. e. ciliated squamous epithelium.
An electron absorbs a photon of light energy and becomes energized; the electron shifts from a ____ atomic orbital to a
__________ atomic orbital. a. fluorescing; ground state b. ground state; lower energy c. lower energy; higher energy d. higher energy; lower energy e. ground state; different ground state