When plasmids are used to produce a desired protein
A) the plasmids are inserted into the bacterial chromosome.
B) the plasmids multiply and produce the protein outside of the bacterium.
C) the desired gene is inserted into the plasmid, and the plasmid is returned to the bacterium by transformation.
D) the bacterial genome and plasmid are inserted into the genome of the cell containing the desired gene (often the cell of a plant or animal).
Answer: C
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Other than the proteins that they encode, what is a major difference between cell-specific and housekeeping genes?
a. Cell-specific genes are expressed only in a single cell type; housekeeping genes are expressed in all cell types. b. Cell-specific genes have promoter proximal elements and enhancers; housekeeping genes have only promoter proximal elements. c. Cell-specific genes have promoter proximal elements that use cell-specific activators; housekeeping genes use "universal" activators. d. Cell-specific genes are only found in certain cell types; housekeeping genes are found in all cell types. e. Cell-specific genes have promoter proximal elements that use "universal" activators; housekeeping genes have promoter proximal elements that respond only to specific activators.
Which structure is responsible for chromosome movement during cell division?
A) synaptonemal complex B) kinetochore microtubules C) metaphase plate D) nuclear envelope E) cell membrane
Suppose a scientist wants to identify a gene in a particular plant species by transposon tagging, but he is initially stumped because he finds no active transposons
He hypothesizes, however, that he can introduce a transposon from another plant species. Why might this be possible?
Which of the following is not a component of a comprehensive weight loss program?
What will be an ideal response?