Which fungicide will account for 15 percent of ozone thinning in future years unless its production is stopped?
a. amphotericin B
b. nystatin
c. methyl bromide
d. dicarboximide
e. ethylmercury bromide
ANSWER: c
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In DNA profiles, the pattern of bands is _____
a. due to variations in restriction enzyme recognition sites in plasmid DNA b. identical in all individuals c. due to variations in STR alleles between individuals d. due to the presence of transgenes e. possible only when copious quantities of DNA are available
The chain termination method of DNA sequencing is based on a replicating DNA strand incorporating a(n)
deoxynucleotide that stops the chain elongation. __________________ Indicate whether the statement is true or false.
The great deserts and associated arid areas of the world mostly lie along the western sides of the continents at about
A. 0° north and south latitude. B. 30° north and south latitude. C. 15° north and south latitude. D. 60° north and south latitude. E. 90° north and south latitude.
Genes are expressed as functional and structural __________
a. nucleic acids b. forms of energy c. proteins d. carbohydrates