What modifications act to stabilize eukaryotic mRNA?
A. Alternative splicing
B. RNA editing
C. 5' capping
D. Polyadenylation
E. Trimming
D
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Using sequence data, it has been shown that:
A. humans evolved from the Neanderthals. B. Homo sapiens arose gradually in many places. C. Homo sapiens arose separately from Homo erectus and Homo neanderthalensis, expanding out of Africa. D. Homo sapiens arose separately from Homo erectus and Homo neanderthalensis, expanding out of Asia. E. Homo sapiens evolved from Homo erectus.
In pedigree charts, autosomal dominant disorders typically Select one:
a. appear only in males. b. appear in every generation. c. appear only in females. d. occur every third generation. e. seem to disappear in one generation, only to reappear in the next generation.
Growth that results in an increase in stem or root length occurs in which specific area of the plant?
a. lateral meristem b. apical meristem c. vascular cambium d. cork cambium e. periderm
When a person has laryngitis, he or she cannot speak. What must happen to permit normal speech?
A) Inflammation in the bronchioles has to go down before enough air can enter the lungs. B) The swelling of the vocal cords must decrease so they can vibrate normally. C) Inflammation in the trachea has to go down before enough air can enter the lungs. D) The epiglottis must cover the glottis.