Which of the following matches of plant hormone to
agricultural application is INCORRECT?
a. abscisic acid; induces dormancy in nursery stock
before shipment
b. ethylene; permits unripe fruit to be shipped
without damage for later ripening at distribution
centers
c. synthetic auxins; induce production of seedless
fruit
d. cytokinins; promote root formation in cuttings
e. gibberellins; increase fruit size
Answer: d
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In bacteria, the porins have the unique ability to transport
A) all hydrophilic molecules. B) hydrophilic molecules of a particular size. C) all hydrophobic molecules. D) hydrophobic molecules of a particular size. E) any molecule, regardless of properties or size.
SARS symptoms include ____
a. high fever, headaches, and respiratory problems b. brittle bones and rash c. heart arrhythmia, kidney failure, and calcium depletion d. liver cirrhosis and difficulty swallowing e. eye pain, loss of vision, and headaches
The phenomenon responsible for the ability of Corynebacterium diphtherium to produce the virulent toxin responsible for the devastating effects of diphtheria is called
A. self-assembly. B. matrix conversion. C. prion protein. D. lysogenic conversion.
Match the terms with the best description. _____ base pair substitution _____ promoter _____ polysome _____ exon _____ genetic code _____ intron _____ base pair deletion
a. protein-coding segment b. causes a shift in the mRNA reading frame c. may result in the replacement of one amino acid for another d. removed before translation e. many ribosomes translating the same mRNA f. complete set of 64 codons g. binding site for RNA polymerase