A BLAST search can be used for which of these applications?
A) to compare a nucleotide or amino acid sequence to databases from a variety of species
B) to display the reading frame of a nucleotide sequence
C) to determine whether a gene has an essential function in an organism
D) to analyze microarray data
E) to visualize the locations of all the genes on a single chromosome
A) to compare a nucleotide or amino acid sequence to databases from a variety of species
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Certain kinds of cells (e.g., some cells in the eyes and bones) mature and differentiate into a state in which they have a specialized function but do not divide or progress through the cell cycle. These cells are "stuck" in which stage?
A) M phase B) G1 C) G2 D) S E) G0
Cancer cells exhibit changes in morphology consistent with
a) Terminal differentiation b) Trans-differentiation c) Onco-differentiation d) De-differentiation
ll of the answer choices listed below are uses for transgenic bacteria, except
a. bioremediation, when bacteria are used to clean up oil spills or other toxic substances. b. the production of organic chemicals, such as phenylalanine, used in the production of aspartame. c. the production of chemicals toxic to insects that can be used to protect plants from insects. d. the production of plants like the pomato. It has a starchy root like the potato and also produces tomatoes on the stem portion of the plant. e. the production of human growth hormones.
________ has the same optical qualities as glass and thus prevents refractive loss of light as it passes from the slide to the objective lens.
Fill in the blank(s) with the appropriate word(s).