What is the function of a protein kinase?
A. To remove phosphate groups from proteins
B. To cleave membrane phospholipids
C. To phosphorylate GDP to generate GTP
D. To add phosphate groups onto proteins
D. To add phosphate groups onto proteins
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Resonance:
A. is an aspect of valence bond theory that describes the multiple structures that can be adopted by a single bond. B. occurs in molecules that contain single and double bonds next to each other and, as a result, can exist as an average of multiple structures. C. explains why double bonds are planar. D. is an aspect of valence bond theory that describes the multiple structures that can be adopted by a double bond. E. occurs in peptide bonds but not in nucleic acids.
What is true of the Shannon diversity index? Select all that apply.
_____ Within a community, Its value increases as the number of species sampled increases. _____ Its value is independent of species relative abundance. _____ It does not take into account very rare species. _____ Its value increases when individuals are more evenly distributed among species
Which of the following is a diploid cell destined for a specialized role in the production of gametes?
A) somatic cell B) germ-line cell C) spermatid D) polar body E) ootid
Which of the following is true of deuterostomes?
a. The first opening into the embryo becomes the anus. b. The first opening into the embryo becomes the mouth. c. The second opening into the embryo becomes the anus. d. The second opening into the embryo becomes the mouth. e. Both a and d are true.