Consider this anomaly in daughter cells: One meiotic nucleus has two copies of a chromosome, and the other daughter cells does not have a copy of that chromosome. What caused this situation?
a. a centromere did not divide in metaphase I
b. a centromere did not divide in anaphase II
c. a centromere did not divide during telophase I
d. a centromere did not divide during prophase II
b
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Skeletal muscle growth and development is inhibited by ____ produced in muscle cells
a. erythropoietin b. acetylcholine c. epidermal growth factor d. epinephrine e. myostatin
Competitive exclusion is the result of
a. mutualism. b. commensalism. c. competition. d. predation. e. parasitism.
Mitochondrial diseases ________
A) are very rare; only a couple of people are diagnosed per year B) are caused only by spontaneous mitochondrial DNA mutations C) cannot be inherited from the mother D) None of the above is true.
When you ride your bike to class, which area of the cerebrum are you using to move your leg muscles?
A) premotor cortex B) somatosensory C) thalamus D) corpus callosum