Antibiotic resistance genes are often included on plasmid vectors because
A) antibiotic resistance is used to select for bacteria cells containing the vector.
B) antibiotic resistance can be used to control the growth of the genetically modified organism.
C) antibiotics are often present in humans being treated for disease.
D) only bacteria are affected by antibiotics.
E) antibiotic resistance genes can be used as transcriptional reporters.
Answer: 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.
Which of the following is the major lipid found in membranes?
A. steroids B. cholesterol C. triglycerides D. phospholipids E. saturated fatty acids
Most carbohydrates manufactured in leaves and other photosynthetic parts are transported through the phloem to the rest of the plant by the process of
A. transpiration. B. translocation. C. osmosis. D. receptor-mediated transport. E. turgor pressure.
The sarcolemma of a muscle fiber is the
A. nucleus B. mitochondia C. plasma membrane D. connective tissue covering E. none of the above