The cause of the Irish potato famine of the 1840s was the protist
a. Pseudomonas aeruginosa.
b. Phytophthora infestans.
c. Plasmodium falciparum.
d. Physarum polycephalum.
e. Phytophthora ramorum.
B
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The production of a functional gene product by transforming bacteria that lack a lacZ gene with a plasmid containing a lacZ gene is known as
A) complementation. B) mitosis. C) transfection. D) reversion.
Which of the following conditions would encourage the development of sclerotia?
A. Nutrient-rich and warm and humid B. Nutrient-poor C. Warm, humid D. Nutrient-rich
Polysaccharides ____
a. are composed of three linked monosaccharides b. contain only straight monomer chains c. are always made of glucose molecules d. may be insoluble and difficult to break down e. are formed by cleavage reactions
Suppose Apple is considering increasing its advertising expenditures to promote the most recent iPhone. To try to assess the effect of such a move, it looks at sales in several small markets. In some of these markets Apple increased advertising expenditures by 30% and in others there was no change. When conducting this "experiment," what is the treatment?
A. The increase in advertising expenditures B. The number of small markets that received an increase in advertising expenditures C. iPhone sales in the small markets that were studied D. The increase in iPhone sales in markets experiencing the increase in advertising expenditures