Which one of the following parts of the eye is affected by cataracts?
A) cornea
B) lens
C) aqueous humor
D) vitreous humor
E) retina
B
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A ________ genome exists as several separate, nonidentical molecules that may be packaged together or separately.
A. diploid B. fractionated C. polyploid D. segmented
Regulation of an enzyme's activity occurs
A) transcriptionally. B) translationally. C) posttranslationally. D) at any point on the enzymatic production pathway.
Which of the following viral diseases has been acquired in the United States by handling pet prairie dogs?
A) chickenpox B) hantavirus C) monkeypox D) smallpox
An increase in plant diameter results from cell division in which type of meristem?
A. intercalary meristem B. lateral meristem C. primary meristem D. secondary meristem E. stele meristem