The many oxidation reactions that take place in our bodies cause the formation of
a. free radicals.
b. antioxidants.
c. covalent molecules.
d. ionic molecules.
e. hydrogen bonds
A
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The genomes of many organisms have been sequenced. What benefits or uses could result from this information?
A. personalizing medicine based on individual genomic sequence B. tracing evolutionary history and relationships of organisms C. elucidating genetic patterns of medical interest D. identifying genes of agricultural import E. All of these choices are benefits of genome sequencing.
A pollen grain coat is composed of which of
the following? a. sporopollenin b. cellulose c. peptidoglycan d. exopolysaccharides e. none of these
The typical mushrooms, but not truffles or morels, belong to the
A. imperfect fungi. B. basidiomycetes. C. zygomycetes. D. ascomycetes.
Match the type of phenotypic change below with the type of genetic change most likely to cause it. Each type of genetic change may be used more than once, or may not be used at all
Phenotypic changes: 1. A protein normally localized in the nucleus is now localized in the cytoplasm. _________ 2. A protein acquires a DNA-binding domain. _________ 3. Tandem copies of a gene are found in the genome. _________ 4. A copy of a bacterial gene is now found integrated on a human chromosome. _________ 5. A protein becomes much more unstable. _________ 6. A protein normally expressed only in the liver is now expressed in blood cells. ________ Types of genetic change: A. mutation within a gene B. gene duplication C. mutation in a regulatory region D. exon shuffling E. horizontal gene transfer