The basic structure of a nucleotide includes ________
A) mRNA, rRNA, and tRNA
B) phosphorus and zinc
C) phosphorus and sulfur
D) base, sugar, and phosphate
E) amino acids
D
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On which structure would you expect to find a body map?
a. frontal lobe b. temporal lobe c. occipital lobe d. thalamus e. brain stem
Differential gene expression is defined as the:a
ability of some cells to arrest their development under varying environmental conditions. b. progressive fixation of the fates of a cell's descendants. c. genetic variation found in various somatic cells of the same individual. d. regulation during development that varies the type and quantity of gene products among cells. e. constitutive expression of all genes in the somatic cells.
All of the following characteristics are typical for microorganisms EXCEPT
A. Generally consist of single cell or groups of cells with little specialization. B. Generally reproduce by asexual reproduction. C. Most are parasites. D. Generally live in moist environments.
Which of the statements below is supported by the Avery, McCarty, and MacLeod experiment and the data in the figure above?
A. Lipids from one strain of bacteria can alter the phenotype of another strain if those lipids are taken up by the other strain. B. DNA from one strain of bacteria can alter the phenotype of another strain if that DNA is taken up by the other strain. C. RNA from one strain of bacteria can alter the phenotype of another strain if that RNA is taken up by the other strain. D. Protein from one strain of bacteria can alter the phenotype of another strain if that protein is taken up by the other strain. E. Carbohydrates from one strain of bacteria can alter the phenotype of another strain if those carbohydrates are taken up by the other strain.