Which of the following would be an example of gene therapy technology? oA. Modifying E. coli to produce indigo dye for coloring denim blue jeans
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OB. Cutting DNA into fragments with restriction enzymes
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OC. Separation of DNA fragmernts using gel electrophoresis
D. Development of a nasal spray that contains copies of the normal gene to replace defective genes in persons with cystic fibroSIs

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48

Which example best describes a reflex action? a. eating food when hungry b. coughing when the throat is irritated c. bending down to lift a heavy object d. going for a walk outside