A DNA microarray (also called a DNA chip) can be used to ________
A) isolate genes from eukaryotic cell nuclei
B) scan a population of nucleic acids for abundance and mutations
C) assay protein output from a genomic database
D) mutate genes of interest
E) trap genes that are both active and inactive
B
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Indicate whether the statement is true or false.
The fluid filling the space around the CNS is termed
A. cerebrospinal fluid. B. interstitial fluid. C. lymph. D. blood. E. arachnoid fluid.
The mosaic effect of X inactivation in human
females can be observed in a. skin color. b. hair color. c. fingernails. d. distribution of sweat glands. e. all of these
Which of the following characteristics does NOT distinguish the archaea from the bacteria?
A) the types of transfer RNA used B) the rRNA sequences present C) the deoxyribonucleotides D) cell wall composition E) cell membrane composition