Which of the following is not a member of the gymnosperms?
A. cycads
B. conifers
C. ginkgos
D. ferns
E. gnetophytes
D. ferns
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Which of the following is NOT a principle used when analyzing cladograms?
A. All species, or higher taxa, are placed on tips in a phylogenetic tree. B. All species, or higher taxa, are placed on nodes in a phylogenetic tree. C. Each cladogram branch point should have one or more shared derived characters that are common to all species above the branch point, unless the character is later modified. D. All shared derived characters appear together only once in a cladogram unless they arose independently during evolution more than once. E. All species, or higher taxa, are placed on tips in a phylogenetic tree and all shared derived characters appear together only once in a cladogram unless they arose independently during evolution more than once.
In Noller’s fragment reaction,
a. RNA-met* mimicked the rRNA b. puromycin was used to mimic tRNA c. the 50S subunit was used to test the peptidyl transferase reaction d. digesting proteins eliminated activity e. digesting rRNA did not eliminate activity
Which of the following processes would be most likely to occur in the Golgi complex?
A) synthesis of steroids B) production and packaging of lipids C) glycosylation of proteins D) synthesis of DNA E) detoxification of drugs
In the general regression equation y = mx + b, variables m and b represent ________ and ________, respectively
A) the x-intercept, the y-intercept B) the regression line slope, the y-intercept C) the y-intercept, the regression line slope D) the y-intercept, the x-intercept E) narrow-sense heritability, broad-sense heritability