Which of the following shows Chargaff's equivalence?
A) RNA
B) single-stranded DNA
C) histones
D) double-stranded DNA
E) deoxyribose
Answer: D
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Discuss the ecological importance of the enzyme nitrogenase, the diversity and physiology of the various groups of organisms that contain it, and the strategies these organisms use to optimize conditions for the enzyme
What will be an ideal response?
Large gut populations of Bifidobacterium are associated with ____
a. peptic ulcers b. irritable bowel syndrome c. gastroesophageal reflux disease d. improved immune function e. increased vital capacity
Conduction from node to node
a. occurs only in the central nervous system. b. is a rapid type of nerve conduction. c. occurs between nerves and muscles. d. involves the “jumping” of impulses. e. is a rapid type of nerve conduction and involves the “jumping” of impulses.
Which of the following ecosystem services is considered indirect and dependent more on maintenance of intact ecosystems and less on availability of particular species?
A) production of food B) production of fiber C) production of medicines D) production of clean air and water E) all of the above