What reaction is catalyzed by mercuric reductase?
A) CH3HgCH3 to Hg2+
B) CH3Hg+ to Hg2+
C) Hg4+ to Hg2+
D) Hg2+ to Hg0
Answer: D
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A homologous chromosome pair is best described as two chromosomes that have _______
A. the same genes in the same order but possibly with different alleles of some of the genes B. the same alleles of the same genes in the same order C. the same genes possibly arranged in a different order with potentially different alleles of some of the genes D. different alleles of the same genes arranged in a different order E. identical sequences of nucleotides
Which of the following is not true of conjugation?
A. Involves the action of bacteriophage B. Involves direct contact between cells C. Transfers genes for enzymes and adherence molecules D. The donor retains a copy of the transferred genes E. Transfers genes for drug resistance
Which of the following best describes the link between survivorship curves and equilibrium species?
A. Equilibrium species are limited by density-independent factors and have few offspring. B. Equilibrium species are limited by density-dependent factors and have many offspring. C. Equilibrium species are limited by density-dependent factors and have few offspring. D. Equilibrium species are limited by density-independent factors and have many offspring.
Single layer of cells that are taller than they are wide
A. Pseudostratified columnar B. Simple columnar C. Simple cuboidal D. Simple squamous E. Stratified squamous F. Transitional