Pairs of maternal and paternal chromosomes line up between the two spindle poles during _______________.
A. metaphase I
B. telophase I
C. prophase II
D. metaphase II
E. anaphase II
Answer: A
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The average synonymous substitution rate in mammalian mitochondrial genes is ________ the average rate for nuclear genes
A) 2 times B) 5 times C) 10 times D) 50 times E) 100 times
The ________ can be used to measure whether a substance is an acid or a base
Fill in the blank(s) with correct word
How might a patient who is not being treated with an antibiotic still be exposed to an antibiotic?
A) Health care workers being treated with antibiotics may pass the antibiotic on to the patient. B) Antibiotics can be used in aerosols, thereby entering the environment. C) Visitors currently being treated with antibiotics can pass them on to the patient.
What triggers the defecation reflex?
A. Contraction of the colon B. Stretching of the rectum C. Voluntary contraction of a sphincter D. Emotional stress and a diet low in fiber E. Sufficient concentration of feces due to water removal