The label on a container of margarine lists "hydrogenated vegetable oil" as the major ingredient. What is the result of adding hydrogens to vegetable oil?
A. The hydrogenated vegetable oil is less likely to clog arteries.
B. The hydrogenated vegetable oil has fewer trans fatty acids.
C. The hydrogenated vegetable oil stays solid at room temperature.
D. The hydrogenated vegetable oil has a lower melting point.
E. The hydrogenated vegetable oil has more "kinks" in the fatty acid chains.
Answer: C. The hydrogenated vegetable oil stays solid at room temperature.
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The hormone that enhances fruit ripening is ____
Fill in the blank with the appropriate word.
A scientist fused a mouse cell and a human cell, then treated the cell with specific antibodies
covalently linked to fluorescent dyes (antibodies to mouse proteins--green; antibodies to human proteins--red). What does the cell look like immediately after fusion?
a. The cell is half red and half green. b. The red and green fluorescent labels are uniformly distributed across the entire membrane. c. The red and green labels are distributed in intermingled patches. d. The red and green labels flash intermittently. e. The red and green labels are distributed in a swirling pattern
Yeast genes contain ________ introns than those of most eukaryotic organisms
a. more b. fewer c. longer d. duplicated
Consider a diploid population in which a single locus supports two alleles, A1 and A2, whose respective allele frequencies equal p and q. The summation of p+q would equal:
a. 0.25 b. 0.5 c. 1 d. 1.5 e. 2