All of the following traits are true of fibrous root systems except that they are not ________
a. adapted to take advantage of light rains
b. typical of eudicots
c. made up of both lateral and adventitious roots
d. produced by grasses
b
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If purple flower color is dominant in pea plants, a cross between true breeding P generation purple and white plants will
result in ____.
a. all white flowers in the F1 generation b. all purple flowers in the F1 generation c. all purple flowers in the F1 generation but a lighter purple than in the parents d. mostly purple flowers in the F1 generation, with an occasional white flower e. half of the plants having purple flowers and half having white flowers
Aminoacyl-tRNA synthetase is the enzyme that
A) folds tRNA molecules into their proper configuration. B) causes tRNA molecules to bind to the aminoacyl site of a ribosome. C) produces tRNA by reading DNA molecules. D) adds the appropriate amino acid to an uncharged tRNA.
Which enzyme converts ATP to cyclic AMP?
a. lactic dehydrogenase b. creatine phosphokinase c. pancreatic nucleotidase d. adenylate cyclase e. monoamine oxidase
The main storehouse for substances in sedimentary cycles is ____
a. oceans b. air c. Earth’s crust d. fresh water e. sand