Males that tend to be taller than average and show
mild mental impairment may be designated
a. XXY.
b. XYY.
c. Turner syndrome.
d. Down syndrome.
e. none of these.
Answer: b
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Which of the following statements about chlorophyll is correct?
A. It appears green because it absorbs light in the green light spectrum. B. It reflects all colors in the light spectrum except green. C. It reflects light in the green light spectrum. D. It reflects high-energy electrons. E. All of the choices are correct.
Which of the following characteristics are shared by cells found in both plants and fungi?
a. cell wall b. chloroplast c. photosynthesis d. all of these
The layer of the eye where photoreceptors are
located is the a. lens. b. cornea. c. pupil. d. iris. e. retina.
Centrioles and a starburst cluster of spindle fibers would be found in
(a) both plant and animal cells. (b) only plant cells. (c) only animal cells. (d) none of the above.