Which of the following hormones promotes seed dormancy?
A) cytokinin
B) ethylene
C) gibberellin
D) abscisic acid
D
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An operon is a useful genetic element, because it
A) encourages the binding of RNA polymerase. B) allows coordinated expression of multiple related genes in prokaryotes. C) translates DNA sequence into amino acid sequence. D) encourages the binding of ribosomes in the correct location.
Nongonococcal urethritis is most commonly caused by
a) Treponema pallidum. b) Haemophilus ducreyi. c) Gardnerella vaginalis. d) Chlamydia trachomatis.
A light-sensitive pigment that helps set plant circadian rhythms based on length of night is known as __________.
A. phytochrome B. chlorophyll C. thigmotropism D. ribosomes E. statoliths
A student sees a bee on a flower. the student wonders how the bee finds flowers. this student is displaying the scientific attitude of
a. creativity. b. curiosity. c. open-mindedness. d. skepticism