Spliceosome components are recruited to 3? and 5? splice sites by SR proteins bound to what DNA sequences?
What will be an ideal response?
exonic splicing enhancers
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Mannitol salt agar (MSA) only allows the growth of halophiles (salt-loving microbes). Among the halophiles, mannitol fermenters release acid that turns the pH indicator yellow; mannitol nonfermenters leave the medium red. Onto MSA you inoculate a halophilic mannitol nonfermenter and a nonhalophilic mannitol nonfermenter. Here the medium acts as a ________ medium.
A. selective and differential B. differential C. enrichment D. selective
During starvation, humans and other animals deplete glycogen and fat reserves first, followed by protein
A. true B. false
Which of the following is not an observation or inference on which natural selection is based?
A. Only a fraction of an individual's offspring may survive. B. Species produce more offspring than the environment can support. C. Individuals whose characteristics are best suited to the environment generally leave more offspring than those whose characteristics are less well suited. D. There is heritable variation among individuals. E. Poorly adapted individuals never produce offspring.
Which of these techniques could tell you how gene expression differs between individuals with and without cystic fibrosis?
A) therapeutic cloning B) DNA microarray C) reproductive cloning D) karyotyping