If you wanted to prevent a regulatory protein from changing gene expression, you would have to prevent physical contact between the protein and _____
A) ribosomes
B) DNA
C) ribozymes
D) mRNA
Answer: B
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The F (fertility) plasmid contains a set of genes that encode for the ________ proteins that are essential in conjugative transfer of DNA
A) pili B) SOS repair C) transduction D) transformation
How did researchers determine the proteins involved in the secretory pathway?
a. interfering with the translation of proteins and examining the cell's ability to transport fluorescently tagged proteins b. adding a detergent to the cells to lyse the membranes and examining transport of fluorescently tagged proteins c. genetically engineering mutations in genes and measuring changes in Golgi complex morphology d. treating cells with inhibitors of the secretory pathway and measuring changes in Golgi complex morphology e. altering the pH of the media to selectively regulate different enzymes and measuring changes in Golgi complex morphology
Cytokinesis in plant cells involves the formation of
A.) a belt of protein threads B.) a cell plate C.) spindle fibers D.) centrioles
Which section of the small intestine is devoted to absorbing water and the products of digestion into the bloodstream?
A. ileum B. jejunum C. duodenum